Failed to load the jupyterlab-git server extension

[emhl]

Description

i have tried multiple times to install jupyterlab_git when installing with pip i get the following error:

when installing with conda i get an error with the following message as well:

Plugin '@jupyterlab/git:plugin' is already registered.

Context

• Python package version:

  Name: jupyterlab-git
  Version: 0.34.2
  Summary: A JupyterLab extension for version control using git
  Home-page: https://github.com/jupyterlab/jupyterlab-git
  Author: Jupyter Development Team
  Author-email: 
  License: BSD-3-Clause
  Location: /opt/conda/lib/python3.9/site-packages
  Requires: jupyter-server, nbdime, nbformat, packaging, pexpect
  Required-by: 

• Extension version:

  
  JupyterLab v3.3.2
  /opt/conda/share/jupyter/labextensions
      jupyter-matplotlib v0.10.5 enabled OK
      jupyterlab-system-monitor v0.8.0 enabled OK (python, jupyterlab-system-monitor)
      jupyterlab-topbar-extension v0.6.1 enabled OK (python, jupyterlab-topbar)
      nbdime-jupyterlab v2.1.1 enabled OK
      jupyterlab-theme-solarized-dark v2.0.1 enabled OK (python, jupyterlab_theme_solarized_dark)
      @jupyter-widgets/jupyterlab-manager v3.1.0 enabled OK (python, jupyterlab_widgets)
      @krassowski/jupyterlab-lsp v3.9.0 enabled OK (python, jupyterlab-lsp)
      @jupyterlab/git v0.34.2 enabled OK (python, jupyterlab-git)
      @jupyter-server/resource-usage v0.6.1 enabled OK (python, jupyter-resource-usage)

Other labextensions (built into JupyterLab) app dir: /opt/conda/share/jupyter/lab @datalayer-jupyter/jupyterlab-git v0.30.0 enabled OK @jupyterlab/debugger v3.3.2 disabled OK spreadsheet-editor v0.6.1 enabled OK

Disabled extensions: @jupyterlab/debugger (all plugins)

- Git version:
<!-- Results of `git --version` -->

git version 2.25.1

- Operating System and its version:
i'm running Ubuntu 20.04.4 LTS but jupyterlab is running inside a docker conatainer based on the jupyter/scipy-notebook
<details><summary>Command Line Output</summary>
<pre>
[D 2022-03-19 22:16:56.484 ServerApp] Searching ['/srv/ubuntu', '/home/jovyan/.jupyter', '/home/jovyan/.local/etc/jupyter', '/opt/conda/etc/jupyter', '/usr/local/etc/jupyter', '/etc/jupyter'] for config files
[D 2022-03-19 22:16:56.485 ServerApp] Looking for jupyter_config in /etc/jupyter
[D 2022-03-19 22:16:56.486 ServerApp] Looking for jupyter_config in /usr/local/etc/jupyter
[D 2022-03-19 22:16:56.487 ServerApp] Looking for jupyter_config in /opt/conda/etc/jupyter
[D 2022-03-19 22:16:56.487 ServerApp] Looking for jupyter_config in /home/jovyan/.local/etc/jupyter
[D 2022-03-19 22:16:56.488 ServerApp] Looking for jupyter_config in /home/jovyan/.jupyter
[D 2022-03-19 22:16:56.488 ServerApp] Looking for jupyter_config in /srv/ubuntu
[D 2022-03-19 22:16:56.490 ServerApp] Looking for jupyter_server_config in /etc/jupyter
[D 2022-03-19 22:16:56.491 ServerApp] Loaded config file: /etc/jupyter/jupyter_server_config.py
[D 2022-03-19 22:16:56.492 ServerApp] Looking for jupyter_server_config in /usr/local/etc/jupyter
[D 2022-03-19 22:16:56.492 ServerApp] Looking for jupyter_server_config in /opt/conda/etc/jupyter
[D 2022-03-19 22:16:56.493 ServerApp] Looking for jupyter_server_config in /home/jovyan/.local/etc/jupyter
[D 2022-03-19 22:16:56.493 ServerApp] Looking for jupyter_server_config in /home/jovyan/.jupyter
[D 2022-03-19 22:16:56.493 ServerApp] Looking for jupyter_server_config in /srv/ubuntu
[D 2022-03-19 22:16:56.496 ServerApp] Paths used for configuration of jupyter_server_config: 
        /etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:56.498 ServerApp] Paths used for configuration of jupyter_server_config: 
        /usr/local/etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:56.499 ServerApp] Paths used for configuration of jupyter_server_config: 
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter-kite-serverextension.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter-lsp-jupyter-server.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter_resource_usage.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter_server_mathjax.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyterlab.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyterlab_git.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/nbclassic.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/nbdime.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/notebook_shim.json
        /opt/conda/etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:56.505 ServerApp] Paths used for configuration of jupyter_server_config: 
        /home/jovyan/.local/etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:56.507 ServerApp] Paths used for configuration of jupyter_server_config: 
        /home/jovyan/.jupyter/jupyter_server_config.d/jupyterlab_git.json
        /home/jovyan/.jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:56.510 ServerApp] Paths used for configuration of jupyter_server_config: 
        /srv/ubuntu/jupyter_server_config.json
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:193: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  nodejs = Unicode(help=_("path to nodejs executable")).tag(config=True)
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:195: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  node_roots = List_([], help=_("absolute paths in which to seek node_modules")).tag(
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:200: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  [], help=_("additional absolute paths to seek node_modules first")
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:41: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  help=_("extra language server specs, keyed by implementation, from conf.d"),
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:46: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  help=_("a dict of language server specs, keyed by implementation"),
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:52: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  True, help=_("try to find known language servers in sys.prefix (and elsewhere)")
[I 2022-03-19 22:16:56.596 ServerApp] jupyter_kite | extension was successfully linked.
[I 2022-03-19 22:16:56.597 ServerApp] jupyter_lsp | extension was successfully linked.
[I 2022-03-19 22:16:56.597 ServerApp] jupyter_resource_usage | extension was successfully linked.
[D 2022-03-19 22:16:56.606 MathJaxExtension] Config changed: {'ServerApp': {'log_level': 'DEBUG', 'allow_root': True, 'ip': '0.0.0.0', 'port': 8888, 'open_browser': False, 'jpserver_extensions': <LazyConfigValue {'update': {'jupyter_kite': True, 'jupyter_lsp': True, 'jupyter_resource_usage': True, 'jupyter_server_mathjax': True, 'jupyterlab_git': True, 'nbclassic': True, 'nbdime': True, 'notebook_shim': True}}>}, 'ExtensionApp': {'log_level': 'DEBUG'}, 'FileContentsManager': {'delete_to_trash': False}}
[D 2022-03-19 22:16:56.608 ServerApp] Config changed: {'ServerApp': {'log_level': 'DEBUG', 'allow_root': True, 'ip': '0.0.0.0', 'port': 8888, 'open_browser': False, 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'jupyter_kite': True, 'jupyter_lsp': True, 'jupyter_resource_usage': True, 'jupyter_server_mathjax': True, 'jupyterlab_git': True, 'nbclassic': True, 'nbdime': True, 'notebook_shim': True}>}, 'ExtensionApp': {'log_level': 'DEBUG'}, 'FileContentsManager': {'delete_to_trash': False}}
[I 2022-03-19 22:16:56.610 ServerApp] jupyter_server_mathjax | extension was successfully linked.
[D 2022-03-19 22:16:56.626 LabApp] Config changed: {'NotebookApp': {}, 'ServerApp': {'log_level': 'DEBUG', 'allow_root': True, 'ip': '0.0.0.0', 'port': 8888, 'open_browser': False, 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'jupyter_kite': True, 'jupyter_lsp': True, 'jupyter_resource_usage': True, 'jupyter_server_mathjax': True, 'jupyterlab_git': True, 'nbclassic': True, 'nbdime': True, 'notebook_shim': True}>}, 'ExtensionApp': {'log_level': 'DEBUG'}, 'FileContentsManager': {'delete_to_trash': False}}
[I 2022-03-19 22:16:56.628 ServerApp] jupyterlab | extension was successfully linked.
[I 2022-03-19 22:16:56.629 ServerApp] jupyterlab_git | extension was successfully linked.
[W 2022-03-19 22:16:56.634 NotebookApp] 'ip' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-19 22:16:56.635 NotebookApp] 'port' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-19 22:16:56.636 NotebookApp] 'port' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[D 2022-03-19 22:16:56.644 NotebookApp] Config changed: {'NotebookApp': {'open_browser': False}, 'ServerApp': {'ip': '0.0.0.0', 'port': 8888, 'log_level': 'DEBUG', 'allow_root': True, 'open_browser': False, 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'jupyter_kite': True, 'jupyter_lsp': True, 'jupyter_resource_usage': True, 'jupyter_server_mathjax': True, 'jupyterlab_git': True, 'nbclassic': True, 'nbdime': True, 'notebook_shim': True}>}, 'FileContentsManager': {'delete_to_trash': False}, 'ExtensionApp': {'log_level': 'DEBUG'}}
[I 2022-03-19 22:16:56.646 ServerApp] nbclassic | extension was successfully linked.
[I 2022-03-19 22:16:56.647 ServerApp] nbdime | extension was successfully linked.
[D 2022-03-19 22:16:56.949 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /home/jovyan/.jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:56.952 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:56.953 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /usr/local/etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:56.955 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyter-lsp-notebook.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyter_resource_usage.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyterlab.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyterlab_git.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/nbdime.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/serverextension.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:56.960 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /home/jovyan/.local/etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:56.961 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /home/jovyan/.jupyter/jupyter_notebook_config.json
[I 2022-03-19 22:16:56.983 ServerApp] nbresuse | extension was found and enabled by notebook_shim. Consider moving the extension to Jupyter Server's extension paths.
[I 2022-03-19 22:16:56.983 ServerApp] nbresuse | extension was successfully linked.
[I 2022-03-19 22:16:56.984 ServerApp] notebook_shim | extension was successfully linked.
[D 2022-03-19 22:16:56.986 ServerApp] Config changed: {'ExtensionApp': {'log_level': 'DEBUG'}, 'FileContentsManager': {'delete_to_trash': False}, 'NotebookApp': {'open_browser': False}, 'ServerApp': {'ip': '0.0.0.0', 'port': 8888, 'log_level': 'DEBUG', 'allow_root': True, 'open_browser': False, 'jpserver_extensions': <LazyConfigValue value={'jupyterlab': True, 'jupyter_kite': True, 'jupyter_lsp': True, 'jupyter_resource_usage': True, 'jupyter_server_mathjax': True, 'jupyterlab_git': True, 'nbclassic': True, 'nbdime': True, 'notebook_shim': True}>}}
[I 2022-03-19 22:16:57.021 ServerApp] notebook_shim | extension was successfully loaded.
[D 2022-03-19 22:16:57.129 ServerApp] [lsp] rootUri will be file:///srv/ubuntu
[D 2022-03-19 22:16:57.130 ServerApp] [lsp] virtualDocumentsUri will be file:///srv/ubuntu/.virtual_documents
[D 2022-03-19 22:16:57.131 ServerApp] [lsp] The following Language Servers will be available: {
      "kitels": {
        "argv": [
          "/home/jovyan/.local/share/kite/current/kite-lsp"
        ],
        "display_name": "kite",
        "languages": [
          "python"
        ],
        "mime_types": [
          "text/python",
          "text/x-ipython"
        ],
        "version": 2
      }
    }
[I 2022-03-19 22:16:57.137 ServerApp] jupyter_kite | extension was successfully loaded.
[D 2022-03-19 22:16:57.140 ServerApp] Paths used for configuration of jupyter_config: 
        /etc/jupyter/jupyter_config.json
[D 2022-03-19 22:16:57.142 ServerApp] Paths used for configuration of jupyter_config: 
        /usr/local/etc/jupyter/jupyter_config.json
[D 2022-03-19 22:16:57.143 ServerApp] Paths used for configuration of jupyter_config: 
        /opt/conda/etc/jupyter/jupyter_config.json
[D 2022-03-19 22:16:57.144 ServerApp] Paths used for configuration of jupyter_config: 
        /home/jovyan/.local/etc/jupyter/jupyter_config.json
[D 2022-03-19 22:16:57.145 ServerApp] Paths used for configuration of jupyter_config: 
        /home/jovyan/.jupyter/jupyter_config.json
[D 2022-03-19 22:16:57.147 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:57.148 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /usr/local/etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:57.150 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyter-lsp-notebook.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyter_resource_usage.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyterlab.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/jupyterlab_git.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/nbdime.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.d/serverextension.json
        /opt/conda/etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:57.156 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /home/jovyan/.local/etc/jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:57.158 ServerApp] Paths used for configuration of jupyter_notebook_config: 
        /home/jovyan/.jupyter/jupyter_notebook_config.json
[D 2022-03-19 22:16:57.159 ServerApp] Paths used for configuration of jupyter_server_config: 
        /etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:57.161 ServerApp] Paths used for configuration of jupyter_server_config: 
        /usr/local/etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:57.162 ServerApp] Paths used for configuration of jupyter_server_config: 
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter-kite-serverextension.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter-lsp-jupyter-server.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter_resource_usage.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyter_server_mathjax.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyterlab.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/jupyterlab_git.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/nbclassic.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/nbdime.json
        /opt/conda/etc/jupyter/jupyter_server_config.d/notebook_shim.json
        /opt/conda/etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:57.168 ServerApp] Paths used for configuration of jupyter_server_config: 
        /home/jovyan/.local/etc/jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:57.171 ServerApp] Paths used for configuration of jupyter_server_config: 
        /home/jovyan/.jupyter/jupyter_server_config.d/jupyterlab_git.json
        /home/jovyan/.jupyter/jupyter_server_config.json
[D 2022-03-19 22:16:57.200 ServerApp] Checking for /srv/ubuntu/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.201 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.201 ServerApp] Checking for /opt/conda/lib/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.202 ServerApp] Checking for /opt/conda/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.203 ServerApp] bash-language-server/bin/main.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.203 ServerApp] Checking for /srv/ubuntu/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.204 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.205 ServerApp] Checking for /opt/conda/lib/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.205 ServerApp] Checking for /opt/conda/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.206 ServerApp] dockerfile-language-server-nodejs/lib/server.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.207 ServerApp] Checking for /srv/ubuntu/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.207 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.208 ServerApp] Checking for /opt/conda/lib/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.208 ServerApp] Checking for /opt/conda/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.209 ServerApp] javascript-typescript-langserver/lib/language-server-stdio.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.211 ServerApp] Checking for /srv/ubuntu/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.212 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.212 ServerApp] Checking for /opt/conda/lib/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.213 ServerApp] Checking for /opt/conda/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.213 ServerApp] pyright/langserver.index.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.216 ServerApp] Checking for /srv/ubuntu/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.216 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.217 ServerApp] Checking for /opt/conda/lib/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.217 ServerApp] Checking for /opt/conda/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.218 ServerApp] sql-language-server/dist/bin/cli.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.220 ServerApp] Checking for /srv/ubuntu/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.221 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.221 ServerApp] Checking for /opt/conda/lib/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.222 ServerApp] Checking for /opt/conda/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.223 ServerApp] unified-language-server/src/server.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.223 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.224 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.225 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.225 ServerApp] Checking for /opt/conda/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.226 ServerApp] vscode-css-languageserver-bin/cssServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.227 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.228 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.228 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.229 ServerApp] Checking for /opt/conda/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.230 ServerApp] vscode-html-languageserver-bin/htmlServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.230 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.231 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.231 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.232 ServerApp] Checking for /opt/conda/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.232 ServerApp] vscode-json-languageserver-bin/jsonServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.233 ServerApp] Checking for /srv/ubuntu/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.233 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.234 ServerApp] Checking for /opt/conda/lib/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.234 ServerApp] Checking for /opt/conda/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.234 ServerApp] yaml-language-server/bin/yaml-language-server not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:279: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  _("Skipped non-installed server(s): {}").format(
[I 2022-03-19 22:16:57.236 ServerApp] Skipped non-installed server(s): bash-language-server, dockerfile-language-server-nodejs, javascript-typescript-langserver, julia-language-server, pyright, python-language-server, r-languageserver, sql-language-server, texlab, unified-language-server, vscode-css-languageserver-bin, vscode-html-languageserver-bin, vscode-json-languageserver-bin, yaml-language-server
[D 2022-03-19 22:16:57.263 ServerApp] Checking for /srv/ubuntu/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.264 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.264 ServerApp] Checking for /opt/conda/lib/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.265 ServerApp] Checking for /opt/conda/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.266 ServerApp] bash-language-server/bin/main.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.266 ServerApp] Checking for /srv/ubuntu/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.267 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.268 ServerApp] Checking for /opt/conda/lib/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.270 ServerApp] Checking for /opt/conda/node_modules/bash-language-server/bin/main.js
[D 2022-03-19 22:16:57.270 ServerApp] bash-language-server/bin/main.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.272 ServerApp] Checking for /srv/ubuntu/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.272 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.273 ServerApp] Checking for /opt/conda/lib/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.273 ServerApp] Checking for /opt/conda/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.274 ServerApp] dockerfile-language-server-nodejs/lib/server.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.275 ServerApp] Checking for /srv/ubuntu/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.275 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.276 ServerApp] Checking for /opt/conda/lib/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.276 ServerApp] Checking for /opt/conda/node_modules/dockerfile-language-server-nodejs/lib/server.js
[D 2022-03-19 22:16:57.277 ServerApp] dockerfile-language-server-nodejs/lib/server.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.278 ServerApp] Checking for /srv/ubuntu/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.278 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.278 ServerApp] Checking for /opt/conda/lib/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.279 ServerApp] Checking for /opt/conda/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.279 ServerApp] javascript-typescript-langserver/lib/language-server-stdio.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.280 ServerApp] Checking for /srv/ubuntu/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.280 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.280 ServerApp] Checking for /opt/conda/lib/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.281 ServerApp] Checking for /opt/conda/node_modules/javascript-typescript-langserver/lib/language-server-stdio.js
[D 2022-03-19 22:16:57.281 ServerApp] javascript-typescript-langserver/lib/language-server-stdio.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.284 ServerApp] Checking for /srv/ubuntu/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.285 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.285 ServerApp] Checking for /opt/conda/lib/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.286 ServerApp] Checking for /opt/conda/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.287 ServerApp] pyright/langserver.index.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.287 ServerApp] Checking for /srv/ubuntu/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.288 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.288 ServerApp] Checking for /opt/conda/lib/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.289 ServerApp] Checking for /opt/conda/node_modules/pyright/langserver.index.js
[D 2022-03-19 22:16:57.289 ServerApp] pyright/langserver.index.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.294 ServerApp] Checking for /srv/ubuntu/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.295 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.296 ServerApp] Checking for /opt/conda/lib/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.296 ServerApp] Checking for /opt/conda/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.297 ServerApp] sql-language-server/dist/bin/cli.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.297 ServerApp] Checking for /srv/ubuntu/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.298 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.299 ServerApp] Checking for /opt/conda/lib/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.299 ServerApp] Checking for /opt/conda/node_modules/sql-language-server/dist/bin/cli.js
[D 2022-03-19 22:16:57.300 ServerApp] sql-language-server/dist/bin/cli.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.301 ServerApp] Checking for /srv/ubuntu/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.302 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.303 ServerApp] Checking for /opt/conda/lib/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.303 ServerApp] Checking for /opt/conda/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.304 ServerApp] unified-language-server/src/server.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.304 ServerApp] Checking for /srv/ubuntu/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.305 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.306 ServerApp] Checking for /opt/conda/lib/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.306 ServerApp] Checking for /opt/conda/node_modules/unified-language-server/src/server.js
[D 2022-03-19 22:16:57.307 ServerApp] unified-language-server/src/server.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.308 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.309 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.309 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.309 ServerApp] Checking for /opt/conda/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.310 ServerApp] vscode-css-languageserver-bin/cssServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.310 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.311 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.311 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.312 ServerApp] Checking for /opt/conda/node_modules/vscode-css-languageserver-bin/cssServerMain.js
[D 2022-03-19 22:16:57.312 ServerApp] vscode-css-languageserver-bin/cssServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.313 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.314 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.314 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.315 ServerApp] Checking for /opt/conda/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.315 ServerApp] vscode-html-languageserver-bin/htmlServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.316 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.317 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.318 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.318 ServerApp] Checking for /opt/conda/node_modules/vscode-html-languageserver-bin/htmlServerMain.js
[D 2022-03-19 22:16:57.320 ServerApp] vscode-html-languageserver-bin/htmlServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.321 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.322 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.323 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.324 ServerApp] Checking for /opt/conda/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.324 ServerApp] vscode-json-languageserver-bin/jsonServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.325 ServerApp] Checking for /srv/ubuntu/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.326 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.326 ServerApp] Checking for /opt/conda/lib/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.326 ServerApp] Checking for /opt/conda/node_modules/vscode-json-languageserver-bin/jsonServerMain.js
[D 2022-03-19 22:16:57.327 ServerApp] vscode-json-languageserver-bin/jsonServerMain.js not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.328 ServerApp] Checking for /srv/ubuntu/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.328 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.329 ServerApp] Checking for /opt/conda/lib/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.329 ServerApp] Checking for /opt/conda/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.330 ServerApp] yaml-language-server/bin/yaml-language-server not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.330 ServerApp] Checking for /srv/ubuntu/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.331 ServerApp] Checking for /opt/conda/share/jupyter/lab/staging/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.331 ServerApp] Checking for /opt/conda/lib/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.331 ServerApp] Checking for /opt/conda/node_modules/yaml-language-server/bin/yaml-language-server
[D 2022-03-19 22:16:57.332 ServerApp] yaml-language-server/bin/yaml-language-server not found in node_modules of [PosixPath('/srv/ubuntu'), PosixPath('/opt/conda/share/jupyter/lab/staging'), PosixPath('/opt/conda/lib'), PosixPath('/opt/conda')]
[D 2022-03-19 22:16:57.411 ServerApp] [lsp] rootUri will be file:///srv/ubuntu
[D 2022-03-19 22:16:57.412 ServerApp] [lsp] virtualDocumentsUri will be file:///srv/ubuntu/.virtual_documents
[D 2022-03-19 22:16:57.414 ServerApp] [lsp] The following Language Servers will be available: {
      "jedi-language-server": {
        "argv": [
          "/opt/conda/bin/jedi-language-server"
        ],
        "display_name": "jedi-language-server",
        "env": {
          "PYTHONUNBUFFERED": "1"
        },
        "install": {
          "conda": "conda install -c conda-forge jedi-language-server",
          "pip": "pip install -U jedi-language-server"
        },
        "languages": [
          "python"
        ],
        "mime_types": [
          "text/python",
          "text/x-ipython"
        ],
        "urls": {
          "home": "https://github.com/pappasam/jedi-language-server",
          "issues": "https://github.com/pappasam/jedi-language-server/issues"
        },
        "version": 2
      },
      "pylsp": {
        "argv": [
          "/opt/conda/bin/python3.9",
          "-m",
          "pylsp"
        ],
        "config_schema": {
          "properties": {
            "pylsp.configurationSources": {
              "default": [
                "pycodestyle"
              ],
              "description": "List of configuration sources to use.",
              "items": {
                "enum": [
                  "pycodestyle",
                  "pyflakes"
                ],
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.executable": {
              "default": "pylsp",
              "description": "Language server executable",
              "type": "string"
            },
            "pylsp.plugins.jedi_completion.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_completion.include_params": {
              "default": true,
              "description": "Auto-completes methods and classes with tabstops for each parameter.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_definition.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_definition.follow_builtin_imports": {
              "default": true,
              "description": "If follow_imports is True will decide if it follow builtin imports.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_definition.follow_imports": {
              "default": true,
              "description": "The goto call will follow imports.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_hover.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_references.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_signature_help.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_symbols.all_scopes": {
              "default": true,
              "description": "If True lists the names of all scopes instead of only the module namespace.",
              "type": "boolean"
            },
            "pylsp.plugins.jedi_symbols.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.mccabe.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.mccabe.threshold": {
              "default": 15,
              "description": "The minimum threshold that triggers warnings about cyclomatic complexity.",
              "type": "number"
            },
            "pylsp.plugins.preload.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.preload.modules": {
              "default": null,
              "description": "List of modules to import on startup",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pycodestyle.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.pycodestyle.exclude": {
              "default": null,
              "description": "Exclude files or directories which match these patterns.",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pycodestyle.filename": {
              "default": null,
              "description": "When parsing directories, only check filenames matching these patterns.",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pycodestyle.hangClosing": {
              "default": null,
              "description": "Hang closing bracket instead of matching indentation of opening bracket's line.",
              "type": "boolean"
            },
            "pylsp.plugins.pycodestyle.ignore": {
              "default": null,
              "description": "Ignore errors and warnings",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pycodestyle.maxLineLength": {
              "default": null,
              "description": "Set maximum allowed line length.",
              "type": "number"
            },
            "pylsp.plugins.pycodestyle.select": {
              "default": null,
              "description": "Select errors and warnings",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pydocstyle.addIgnore": {
              "default": null,
              "description": "Ignore errors and warnings in addition to the specified convention.",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pydocstyle.addSelect": {
              "default": null,
              "description": "Select errors and warnings in addition to the specified convention.",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pydocstyle.convention": {
              "default": null,
              "description": "Choose the basic list of checked errors by specifying an existing convention.",
              "enum": [
                "pep257",
                "numpy"
              ],
              "type": "string"
            },
            "pylsp.plugins.pydocstyle.enabled": {
              "default": false,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.pydocstyle.ignore": {
              "default": null,
              "description": "Ignore errors and warnings",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pydocstyle.match": {
              "default": "(?!test_).*\\.py",
              "description": "Check only files that exactly match the given regular expression; default is to match files that don't start with 'test_' but end with '.py'.",
              "type": "string"
            },
            "pylsp.plugins.pydocstyle.matchDir": {
              "default": "[^\\.].*",
              "description": "Search only dirs that exactly match the given regular expression; default is to match dirs which do not begin with a dot.",
              "type": "string"
            },
            "pylsp.plugins.pydocstyle.select": {
              "default": null,
              "description": "Select errors and warnings",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "pylsp.plugins.pyflakes.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.pylint.args": {
              "default": null,
              "description": "Arguments to pass to pylint.",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": false
            },
            "pylsp.plugins.pylint.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.rope_completion.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.plugins.yapf.enabled": {
              "default": true,
              "description": "Enable or disable the plugin.",
              "type": "boolean"
            },
            "pylsp.rope.extensionModules": {
              "default": null,
              "description": "Builtin and c-extension modules that are allowed to be imported and inspected by rope.",
              "type": "string"
            },
            "pylsp.rope.ropeFolder": {
              "default": null,
              "description": "The name of the folder in which rope stores project configurations and data.  Pass `null` for not using such a folder at all.",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            }
          },
          "title": "Python Language Server Configuration",
          "type": "object"
        },
        "display_name": "python-lsp-server (pylsp)",
        "env": {
          "PYTHONUNBUFFERED": "1"
        },
        "extend": [
          {
            "display_name": "pyls-mypy",
            "install": {
              "conda": "conda install pyls-mypy",
              "pip": "pip install pyls-mypy"
            }
          },
          {
            "display_name": "pyls-black",
            "install": {
              "conda": "conda install pyls-black",
              "pip": "pip install pyls-black"
            }
          },
          {
            "display_name": "pyls-isort",
            "install": {
              "conda": "conda install pyls-isort",
              "pip": "pip install pyls-isort"
            }
          },
          {
            "display_name": "pyls-memestra",
            "install": {
              "conda": "conda install pyls-memestra",
              "pip": "pip install pyls-memestra"
            }
          }
        ],
        "install": {
          "conda": "conda install -c conda-forge python-lsp-server",
          "pip": "pip install 'python-lsp-server[all]'"
        },
        "languages": [
          "python"
        ],
        "mime_types": [
          "text/python",
          "text/x-ipython"
        ],
        "urls": {
          "home": "https://github.com/python-lsp/python-lsp-server",
          "issues": "https://github.com/python-lsp/python-lsp-server/issues"
        },
        "version": 2
      }
    }
[I 2022-03-19 22:16:57.428 ServerApp] jupyter_lsp | extension was successfully loaded.
[I 2022-03-19 22:16:57.430 ServerApp] jupyter_resource_usage | extension was successfully loaded.
[I 2022-03-19 22:16:57.431 ServerApp] jupyter_server_mathjax | extension was successfully loaded.
[I 2022-03-19 22:16:57.434 LabApp] JupyterLab extension loaded from /opt/conda/lib/python3.9/site-packages/jupyterlab
[I 2022-03-19 22:16:57.435 LabApp] JupyterLab application directory is /opt/conda/share/jupyter/lab
[I 2022-03-19 22:16:57.441 ServerApp] jupyterlab | extension was successfully loaded.
[I 2022-03-19 22:16:57.448 ServerApp] jupyterlab_git | extension was successfully loaded.
[I 2022-03-19 22:16:57.454 ServerApp] nbclassic | extension was successfully loaded.
[D 2022-03-19 22:16:57.533 ServerApp] Using default logger
[D 2022-03-19 22:16:57.534 ServerApp] Using default logger
[D 2022-03-19 22:16:57.535 ServerApp] Using default logger
[D 2022-03-19 22:16:57.535 ServerApp] Using default logger
[D 2022-03-19 22:16:57.536 ServerApp] Using default logger
[D 2022-03-19 22:16:57.537 ServerApp] Using default logger
[I 2022-03-19 22:16:57.540 ServerApp] nbdime | extension was successfully loaded.
[D 2022-03-19 22:16:57.543 ServerApp] Traceback (most recent call last):
      File "/opt/conda/lib/python3.9/site-packages/jupyter_server/extension/manager.py", line 356, in load_extension
        extension.load_all_points(self.serverapp)
      File "/opt/conda/lib/python3.9/site-packages/jupyter_server/extension/manager.py", line 236, in load_all_points
        return [self.load_point(point_name, serverapp) for point_name in self.extension_points]
      File "/opt/conda/lib/python3.9/site-packages/jupyter_server/extension/manager.py", line 236, in <listcomp>
        return [self.load_point(point_name, serverapp) for point_name in self.extension_points]
      File "/opt/conda/lib/python3.9/site-packages/jupyter_server/extension/manager.py", line 229, in load_point
        return point.load(serverapp)
      File "/opt/conda/lib/python3.9/site-packages/jupyter_server/extension/manager.py", line 155, in load
        return loader(serverapp)
      File "/opt/conda/lib/python3.9/site-packages/nbresuse/__init__.py", line 49, in load_jupyter_server_extension
        PrometheusHandler(PSUtilMetricsLoader(nbapp)), 1000
      File "/opt/conda/lib/python3.9/site-packages/nbresuse/prometheus.py", line 25, in __init__
        gauge = Gauge(phrase, "counter for " + phrase.replace("_", " "), [])
      File "/opt/conda/lib/python3.9/site-packages/prometheus_client/metrics.py", line 353, in __init__
        super().__init__(
      File "/opt/conda/lib/python3.9/site-packages/prometheus_client/metrics.py", line 134, in __init__
        registry.register(self)
      File "/opt/conda/lib/python3.9/site-packages/prometheus_client/registry.py", line 29, in register
        raise ValueError(
    ValueError: Duplicated timeseries in CollectorRegistry: {'total_memory_usage'}

[W 2022-03-19 22:16:57.549 ServerApp] nbresuse | extension failed loading with message: Duplicated timeseries in CollectorRegistry: {'total_memory_usage'}
[I 2022-03-19 22:16:57.550 ServerApp] The port 8888 is already in use, trying another port.
[I 2022-03-19 22:16:57.552 ServerApp] Serving notebooks from local directory: /srv/ubuntu
[I 2022-03-19 22:16:57.552 ServerApp] Jupyter Server 1.15.6 is running at:

</pre>
</details>

[welcome[bot]]

Thank you for opening your first issue in this project! Engagement like this is essential for open source projects! :hugs:
If you haven't done so already, check out Jupyter's Code of Conduct. Also, please try to follow the issue template as it helps other other community members to contribute more effectively. You can meet the other Jovyans by joining our Discourse forum. There is also an intro thread there where you can stop by and say Hi! :wave:
Welcome to the Jupyter community! :tada:

[emhl]

Here's the webserver output as well:

Web Browser Output

labicon.jss:58 Redefining previously loaded icon svgstr. name: git, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:add, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:branch, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:clone, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:deletions, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:desktop, svgstrOld: , svgstr: 
j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:diff, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:discard, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:insertions, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:open-file, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:pull, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:push, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:remove, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:rewind, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:tag, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
labicon.jss:58 Redefining previously loaded icon svgstr. name: git:trash, svgstrOld: 
, svgstr: 

j @ labicon.jss:58
index.es6.jss:282 Plugin '@jupyterlab/git:clone' failed to activate.
(anonymous) @ index.es6.jss:282
index.es6.jss:283 Error: No provider for: jupyter.extensions.git_plugin.
    at W.e.resolveRequiredService (static/lab/jlab_core.b5c5f704a59f47233d51.js?v=b5c5f704a59f47233d51:2:1321385)
    at static/lab/jlab_core.b5c5f704a59f47233d51.js?v=b5c5f704a59f47233d51:2:1320942
    at Array.map ()
    at W.e.activatePlugin (static/lab/jlab_core.b5c5f704a59f47233d51.js?v=b5c5f704a59f47233d51:2:1320916)
    at static/lab/jlab_core.b5c5f704a59f47233d51.js?v=b5c5f704a59f47233d51:2:1322108
    at Array.map ()
    at W.e.start (static/lab/jlab_core.b5c5f704a59f47233d51.js?v=b5c5f704a59f47233d51:2:1322082)
    at H (static/lab/7796.231483329f166601248a.js?v=231483329f166601248a:1:8988)
(anonymous) @ index.es6.jss:283
dialog.jss:34 Showing error: Object
D @ dialog.jss:34
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
api/metrics/v1?1647728524747:1          Failed to load resource: the server responded with a status of 404 ()
git/settings?version=0.30.0&1647728524890:1          Failed to load resource: the server responded with a status of 404 ()
api/metrics/v1?1647728525036:1          Failed to load resource: the server responded with a status of 404 ()
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
git.jss:59 Not a JSON response body. Response
index.jss:76 Failed to load the jupyterlab-git server extension settings Error: Git server extension is unavailable. Please ensure you have installed the JupyterLab Git server extension by running: pip install --upgrade jupyterlab-git. To confirm that the server extension is installed, run: jupyter serverextension list.
    at jt (static/lab/6839.bede31058c15edbba232.js?v=bede31058c15edbba232:1:64195)
    at async bn (static/lab/6839.bede31058c15edbba232.js?v=bede31058c15edbba232:1:134668)
    at async Promise.all (index 126)
bn @ index.jss:76
dialog.jss:34 Showing error: Git server extension is unavailable. Please ensure you have installed the JupyterLab Git server extension by running: pip install --upgrade jupyterlab-git. To confirm that the server extension is installed, run: jupyter serverextension list.
D @ dialog.jss:34
364.7873ab3b4f6c579588c7.js:1 TypeError: Cannot convert undefined or null to object
    at Function.entries ()
    at vn.fetchSessions (lab/extensions/@krassowski/jupyterlab-lsp/static/364.7873ab3b4f6c579588c7.js:1:147217)
fetchSessions @ 364.7873ab3b4f6c579588c7.js:1
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object
(anonymous) @ settingregistry.jss:824
api/metrics/v1?1647728527235:1          Failed to load resource: the server responded with a status of 404 ()
settingregistry.jss:824 Skipping this default shortcut because it collides with another default shortcut. Object

[fcollonval]

You are trying to install incompatible extension:

        @jupyterlab/git v0.34.2 enabled OK (python, jupyterlab-git)
        @datalayer-jupyter/jupyterlab-git v0.30.0 enabled OK

You need to remove @datalayer-jupyter/jupyterlab-git

[emhl]

i removed the extension, but i still get the first error message when reloading the page. following the instruction of the message and rebuilding doesn't change anything about that.

• Package Version:

  
  Name: jupyterlab-git
  Version: 0.36.0
  Summary: A JupyterLab extension for version control using git
  Home-page: https://github.com/jupyterlab/jupyterlab-git
  Author: Jupyter Development Team
  Author-email: 
  License: BSD-3-Clause
  Location: /opt/conda/lib/python3.9/site-packages
  Requires: jupyter-server, nbdime, nbformat, packaging, pexpect
  Required-by: 

- Extension Version:
````(base) root@05e5a8878043:/srv/ubuntu# jupyter labextension list
JupyterLab v3.3.2
/opt/conda/share/jupyter/labextensions
        jupyter-matplotlib v0.10.5 enabled OK
        jupyterlab-system-monitor v0.8.0 enabled OK (python, jupyterlab-system-monitor)
        jupyterlab-topbar-extension v0.6.1 enabled OK (python, jupyterlab-topbar)
        nbdime-jupyterlab v2.1.1 enabled OK
        jupyterlab-theme-solarized-dark v2.0.1 enabled OK (python, jupyterlab_theme_solarized_dark)
        @jupyter-widgets/jupyterlab-manager v3.1.0 enabled OK (python, jupyterlab_widgets)
        @krassowski/jupyterlab-lsp v3.9.0 enabled OK (python, jupyterlab-lsp)
        @jupyterlab/git v0.36.0 enabled OK (python, jupyterlab-git)
        @jupyter-server/resource-usage v0.6.1 enabled OK (python, jupyter-resource-usage)

Other labextensions (built into JupyterLab)
   app dir: /opt/conda/share/jupyter/lab
        @jupyterlab/debugger v3.3.2 disabled OK
        spreadsheet-editor v0.6.1 enabled OK

Disabled extensions:
    @jupyterlab/debugger (all plugins)

[fcollonval]

Would you mind providing the result of commands jupyter server extension list and jupyter serverextension list?

[emhl]

here are the outputs of those commands. hope they help

(base) root@05e5a8878043:/srv/ubuntu# jupyter server extension list
Config dir: /home/jovyan/.jupyter
    jupyterlab_git enabled
    - Validating jupyterlab_git...
      jupyterlab_git 0.36.0 OK

/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:193: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  nodejs = Unicode(help=_("path to nodejs executable")).tag(config=True)
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:195: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  node_roots = List_([], help=_("absolute paths in which to seek node_modules")).tag(
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:200: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  [], help=_("additional absolute paths to seek node_modules first")
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:41: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  help=_("extra language server specs, keyed by implementation, from conf.d"),
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:46: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  help=_("a dict of language server specs, keyed by implementation"),
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:52: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  True, help=_("try to find known language servers in sys.prefix (and elsewhere)")
Config dir: /opt/conda/etc/jupyter
    jupyter_kite enabled
    - Validating jupyter_kite...
      jupyter_kite 2.0.2 OK
    jupyter_lsp enabled
    - Validating jupyter_lsp...
      jupyter_lsp 1.4.1 OK
    jupyter_resource_usage enabled
    - Validating jupyter_resource_usage...
      jupyter_resource_usage 0.6.1 OK
    jupyter_server_mathjax enabled
    - Validating jupyter_server_mathjax...
      jupyter_server_mathjax  OK
    jupyterlab enabled
    - Validating jupyterlab...
      jupyterlab 3.3.2 OK
    jupyterlab_git enabled
    - Validating jupyterlab_git...
      jupyterlab_git 0.36.0 OK
    nbclassic enabled
    - Validating nbclassic...
      nbclassic  OK
    nbdime enabled
    - Validating nbdime...
      nbdime 3.1.1 OK
    notebook_shim enabled
    - Validating notebook_shim...
      notebook_shim  OK

Config dir: /usr/local/etc/jupyter

(base) root@05e5a8878043:/srv/ubuntu# jupyter serverextension list
config dir: /opt/conda/etc/jupyter
    jupyter_lsp  enabled 
    - Validating...
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:193: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  nodejs = Unicode(help=_("path to nodejs executable")).tag(config=True)
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:195: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  node_roots = List_([], help=_("absolute paths in which to seek node_modules")).tag(
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/types.py:200: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  [], help=_("additional absolute paths to seek node_modules first")
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:41: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  help=_("extra language server specs, keyed by implementation, from conf.d"),
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:46: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  help=_("a dict of language server specs, keyed by implementation"),
/opt/conda/lib/python3.9/site-packages/jupyter_lsp/manager.py:52: FutureWarning: The alias `_()` will be deprecated. Use `_i18n()` instead.
  True, help=_("try to find known language servers in sys.prefix (and elsewhere)")
      jupyter_lsp 1.4.1 OK
    jupyter_resource_usage  enabled 
    - Validating...
      jupyter_resource_usage 0.6.1 OK
    jupyterlab  enabled 
    - Validating...
      jupyterlab 3.3.2 OK
    jupyterlab_git  enabled 
    - Validating...
      jupyterlab_git 0.36.0 OK
    nbdime  enabled 
    - Validating...
      nbdime 3.1.1 OK
    nbresuse  enabled 
    - Validating...
      nbresuse  OK

[fcollonval]

Ok I'm lost - everything looks fine.

Could you run jupyter lab in debug mode and report here the server log? You need to execute jupyter lab --debug for that. And could you look at errors in the web browser console too?

[emhl]

i don't know what i did (exept for manually killing all the jupyter lab processes), but somehow it works now. thanks <3

[Radiac93]

i don't know what i did (exept for manually killing all the jupyter lab processes), but somehow it works now. thanks <3

Hi, Just wanted to say I had the same issue and it was fixed by shutting down my JupyterLab notebook and restarting it :)

[ebebpl]

Yes had same issue and had to restart the Jupyterhub which kills all jupyterlab users sessions.

[shawnesquivel]

Killing the Jupyter Lab session, then restarting it, made it work for me.

[ttehseen]

Killing the session and restarting also resolved it for me.