Anaconda Navigator suddenly won't open

[HightAE]

Actual Behavior

Anaconda-Navigator will not open.

``` (base) C:\Windows\system32>anaconda-navigator Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\qtpy\__init__.py", line 204, in from PySide import __version__ as PYSIDE_VERSION # analysis:ignore ModuleNotFoundError: No module named 'PySide' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\Scripts\anaconda-navigator-script.py", line 6, in from anaconda_navigator.app.main import main File "C:\ProgramData\Anaconda3\lib\site-packages\anaconda_navigator\app\main.py", line 22, in from anaconda_navigator.utils.conda import is_conda_available File "C:\ProgramData\Anaconda3\lib\site-packages\anaconda_navigator\utils\__init__.py", line 15, in from qtpy.QtGui import QIcon File "C:\ProgramData\Anaconda3\lib\site-packages\qtpy\__init__.py", line 210, in raise PythonQtError('No Qt bindings could be found') qtpy.PythonQtError: No Qt bindings could be found ``` ### Expected Behavior Anaconda-Navigator GUI should open ### Steps to Reproduce ?? ##### Anaconda or Miniconda version: Name Version Build Channel _anaconda_depends 2019.03 py37_0 anaconda custom py37_1 anaconda-client 1.7.2 py37_0 anaconda-navigator 1.9.7 py37_0 anaconda-project 0.8.4 py_0 ##### Operating System: Windows 10 64-bit ##### `conda info`

``` active environment : base active env location : C:\ProgramData\Anaconda3 shell level : 1 user config file : C:\Users\highta01\.condarc populated config files : conda version : 4.7.12 conda-build version : 3.18.10 python version : 3.7.5.final.0 virtual packages : base environment : C:\ProgramData\Anaconda3 (writable) channel URLs : https://repo.anaconda.com/pkgs/main/win-64 https://repo.anaconda.com/pkgs/main/noarch https://repo.anaconda.com/pkgs/r/win-64 https://repo.anaconda.com/pkgs/r/noarch https://repo.anaconda.com/pkgs/msys2/win-64 https://repo.anaconda.com/pkgs/msys2/noarch package cache : C:\ProgramData\Anaconda3\pkgs C:\Users\highta01\.conda\pkgs C:\Users\highta01\AppData\Local\conda\conda\pkgs envs directories : C:\ProgramData\Anaconda3\envs C:\Users\highta01\.conda\envs C:\Users\highta01\AppData\Local\conda\conda\envs platform : win-64 user-agent : conda/4.7.12 requests/2.22.0 CPython/3.7.5 Windows/10 Windows/10.0.17134 administrator : True netrc file : None offline mode : False ```

##### `conda list --show-channel-urls`

``` # packages in environment at C:\ProgramData\Anaconda3: # # Name Version Build Channel _anaconda_depends 2019.03 py37_0 defaults _ipyw_jlab_nb_ext_conf 0.1.0 py37_0 defaults alabaster 0.7.12 py37_0 defaults anaconda custom py37_1 defaults anaconda-client 1.7.2 py37_0 defaults anaconda-navigator 1.9.7 py37_0 defaults anaconda-project 0.8.4 py_0 defaults asn1crypto 1.2.0 py37_0 defaults astroid 2.3.2 py37_0 defaults astropy 3.2.2 py37he774522_0 defaults atomicwrites 1.3.0 py37_1 defaults attrs 19.3.0 py_0 defaults babel 2.7.0 py_0 defaults backcall 0.1.0 py37_0 defaults backports 1.0 py_2 defaults backports.functools_lru_cache 1.5 py_2 defaults backports.os 0.1.1 py37_0 defaults backports.shutil_get_terminal_size 1.0.0 py37_2 defaults backports.tempfile 1.0 py_1 defaults backports.weakref 1.0.post1 py_1 defaults beautifulsoup4 4.8.1 py37_0 defaults bitarray 1.0.1 py37he774522_0 defaults bkcharts 0.2 py37_0 defaults blas 1.0 mkl defaults bleach 3.1.0 py37_0 defaults blosc 1.16.3 h7bd577a_0 defaults bokeh 1.3.4 py37_0 defaults boto 2.49.0 py37_0 defaults bottleneck 1.2.1 py37h452e1ab_1 defaults bzip2 1.0.8 he774522_0 defaults ca-certificates 2019.10.16 0 defaults certifi 2019.9.11 py37_0 defaults cffi 1.13.1 py37h7a1dbc1_0 defaults chardet 3.0.4 py37_1003 defaults click 7.0 py37_0 defaults cloudpickle 1.2.2 py_0 defaults clyent 1.2.2 py37_1 defaults colorama 0.4.1 py37_0 defaults comtypes 1.1.7 py37_0 defaults conda 4.7.12 py37_0 defaults conda-build 3.18.10 py37_3 defaults conda-env 2.6.0 1 defaults conda-package-handling 1.6.0 py37h62dcd97_0 defaults conda-verify 3.4.2 py_1 defaults console_shortcut 0.1.1 3 defaults contextlib2 0.6.0 py_0 defaults cryptography 2.8 py37h7a1dbc1_0 defaults curl 7.65.3 h2a8f88b_0 defaults cycler 0.10.0 py37_0 defaults cython 0.29.13 py37ha925a31_0 defaults cytoolz 0.10.0 py37he774522_0 defaults dask 2.6.0 py_0 defaults dask-core 2.6.0 py_0 defaults decorator 4.4.1 py_0 defaults defusedxml 0.6.0 py_0 defaults distributed 2.6.0 py_0 defaults docutils 0.15.2 py37_0 defaults entrypoints 0.3 py37_0 defaults et_xmlfile 1.0.1 py37_0 defaults fastcache 1.1.0 py37he774522_0 defaults filelock 3.0.12 py_0 defaults flask 1.1.1 py_0 defaults freetype 2.9.1 ha9979f8_1 defaults fsspec 0.5.2 py_0 defaults future 0.17.1 py37_0 defaults get_terminal_size 1.0.0 h38e98db_0 defaults gevent 1.4.0 py37he774522_0 defaults glob2 0.7 py_0 defaults greenlet 0.4.15 py37hfa6e2cd_0 defaults h5py 2.9.0 py37h5e291fa_0 defaults hdf5 1.10.4 h7ebc959_0 defaults heapdict 1.0.1 py_0 defaults html5lib 1.0.1 py37_0 defaults icc_rt 2019.0.0 h0cc432a_1 defaults icu 58.2 ha66f8fd_1 defaults idna 2.8 py37_0 defaults imageio 2.6.1 py37_0 defaults imagesize 1.1.0 py37_0 defaults importlib_metadata 0.23 py37_0 defaults intel-openmp 2019.4 245 defaults ipykernel 5.1.3 py37h39e3cac_0 defaults ipython 7.9.0 py37h39e3cac_0 defaults ipython_genutils 0.2.0 py37_0 defaults ipywidgets 7.5.1 py_0 defaults isort 4.3.21 py37_0 defaults itsdangerous 1.1.0 py37_0 defaults jdcal 1.4.1 py_0 defaults jedi 0.15.1 py37_0 defaults jinja2 2.10.3 py_0 defaults joblib 0.13.2 py37_0 defaults jpeg 9b hb83a4c4_2 defaults json5 0.8.5 py_0 defaults jsonschema 3.1.1 py37_0 defaults jupyter 1.0.0 py37_7 defaults jupyter_client 5.3.4 py37_0 defaults jupyter_console 6.0.0 py37_0 defaults jupyter_core 4.6.0 py37_0 defaults jupyterlab 1.1.4 pyhf63ae98_0 defaults jupyterlab_server 1.0.6 py_0 defaults keyring 18.0.0 py37_0 defaults kiwisolver 1.1.0 py37ha925a31_0 defaults krb5 1.16.1 hc04afaa_7 defaults lazy-object-proxy 1.4.2 py37he774522_0 defaults libarchive 3.3.3 h0643e63_5 defaults libcurl 7.65.3 h2a8f88b_0 defaults libiconv 1.15 h1df5818_7 defaults liblief 0.9.0 ha925a31_2 defaults libpng 1.6.37 h2a8f88b_0 defaults libsodium 1.0.16 h9d3ae62_0 defaults libssh2 1.8.2 h7a1dbc1_0 defaults libtiff 4.0.10 hb898794_2 defaults libxml2 2.9.9 h464c3ec_0 defaults libxslt 1.1.33 h579f668_0 defaults llvmlite 0.30.0 py37ha925a31_0 defaults locket 0.2.0 py37_1 defaults lxml 4.4.1 py37h1350720_0 defaults lz4-c 1.8.1.2 h2fa13f4_0 defaults lzo 2.10 h6df0209_2 defaults m2w64-gcc-libgfortran 5.3.0 6 defaults m2w64-gcc-libs 5.3.0 7 defaults m2w64-gcc-libs-core 5.3.0 7 defaults m2w64-gmp 6.1.0 2 defaults m2w64-libwinpthread-git 5.0.0.4634.697f757 2 defaults markupsafe 1.1.1 py37he774522_0 defaults matplotlib 3.1.1 py37hc8f65d3_0 defaults mccabe 0.6.1 py37_1 defaults menuinst 1.4.16 py37he774522_0 defaults mistune 0.8.4 py37he774522_0 defaults mkl 2019.4 245 defaults mkl-service 2.3.0 py37hb782905_0 defaults mkl_fft 1.0.14 py37h14836fe_0 defaults mkl_random 1.1.0 py37h675688f_0 defaults mock 3.0.5 py37_0 defaults more-itertools 7.2.0 py37_0 defaults mpmath 1.1.0 py37_0 defaults msgpack-python 0.6.1 py37h74a9793_1 defaults msys2-conda-epoch 20160418 1 defaults multipledispatch 0.6.0 py37_0 defaults navigator-updater 0.2.1 py37_0 defaults nbconvert 5.6.0 py37_1 defaults nbformat 4.4.0 py37_0 defaults networkx 2.4 py_0 defaults nltk 3.4.5 py37_0 defaults nose 1.3.7 py37_2 defaults notebook 6.0.1 py37_0 defaults numba 0.46.0 py37hf9181ef_0 defaults numexpr 2.7.0 py37hdce8814_0 defaults numpy 1.17.2 py37hc73f44b_0 defaults numpy-base 1.17.2 py37hc3f5095_0 defaults numpydoc 0.9.1 py_0 defaults olefile 0.46 py37_0 defaults openpyxl 3.0.0 py_0 defaults openssl 1.1.1d he774522_3 defaults packaging 19.2 py_0 defaults pandas 0.25.2 py37ha925a31_0 defaults pandoc 2.2.3.2 0 defaults pandocfilters 1.4.2 py37_1 defaults parso 0.5.1 py_0 defaults partd 1.0.0 py_0 defaults path.py 12.0.1 py_0 defaults pathlib2 2.3.5 py37_0 defaults patsy 0.5.1 py37_0 defaults pep8 1.7.1 py37_0 defaults pickleshare 0.7.5 py37_0 defaults pillow 6.2.0 py37hdc69c19_0 defaults pip 19.3.1 py37_0 defaults pkginfo 1.5.0.1 py37_0 defaults pluggy 0.13.0 py37_0 defaults ply 3.11 py37_0 defaults powershell_shortcut 0.0.1 2 defaults prometheus_client 0.7.1 py_0 defaults prompt_toolkit 2.0.10 py_0 defaults psutil 5.6.3 py37he774522_0 defaults py 1.8.0 py37_0 defaults py-lief 0.9.0 py37ha925a31_2 defaults pycodestyle 2.5.0 py37_0 defaults pycosat 0.6.3 py37hfa6e2cd_0 defaults pycparser 2.19 py37_0 defaults pycrypto 2.6.1 py37hfa6e2cd_9 defaults pycurl 7.43.0.3 py37h7a1dbc1_0 defaults pyflakes 2.1.1 py37_0 defaults pygments 2.4.2 py_0 defaults pylint 2.4.3 py37_0 defaults pyodbc 4.0.27 py37ha925a31_0 defaults pyopenssl 19.0.0 py37_0 defaults pyparsing 2.4.2 py_0 defaults pyqt 5.9.2 py37h6538335_2 defaults pyreadline 2.1 py37_1 defaults pyrsistent 0.15.4 py37he774522_0 defaults pysocks 1.7.1 py37_0 defaults pytables 3.5.2 py37h1da0976_1 defaults pytest 5.2.2 py37_0 defaults pytest-arraydiff 0.3 py37h39e3cac_0 defaults pytest-astropy 0.5.0 py37_0 defaults pytest-doctestplus 0.4.0 py_0 defaults pytest-openfiles 0.4.0 py_0 defaults pytest-remotedata 0.3.2 py37_0 defaults python 3.7.5 h8c8aaf0_0 defaults python-dateutil 2.8.0 py37_0 defaults python-libarchive-c 2.8 py37_13 defaults pytz 2019.3 py_0 defaults pywavelets 1.1.1 py37he774522_0 defaults pywin32 223 py37hfa6e2cd_1 defaults pywinpty 0.5.5 py37_1000 defaults pyyaml 5.1.2 py37he774522_0 defaults pyzmq 18.1.0 py37ha925a31_0 defaults qt 5.9.7 vc14h73c81de_0 defaults qtawesome 0.6.0 py_0 defaults qtconsole 4.5.5 py_0 defaults qtpy 1.9.0 py_0 defaults requests 2.22.0 py37_0 defaults rope 0.14.0 py_0 defaults ruamel_yaml 0.15.46 py37hfa6e2cd_0 defaults scikit-image 0.15.0 py37ha925a31_0 defaults scikit-learn 0.21.3 py37h6288b17_0 defaults scipy 1.3.1 py37h29ff71c_0 defaults seaborn 0.9.0 py37_0 defaults send2trash 1.5.0 py37_0 defaults setuptools 41.6.0 py37_0 defaults simplegeneric 0.8.1 py37_2 defaults singledispatch 3.4.0.3 py37_0 defaults sip 4.19.8 py37h6538335_0 defaults six 1.12.0 py37_0 defaults snappy 1.1.7 h777316e_3 defaults snowballstemmer 2.0.0 py_0 defaults sortedcollections 1.1.2 py37_0 defaults sortedcontainers 2.1.0 py37_0 defaults soupsieve 1.9.3 py37_0 defaults sphinx 2.2.1 py_0 defaults sphinxcontrib 1.0 py37_1 defaults sphinxcontrib-applehelp 1.0.1 py_0 defaults sphinxcontrib-devhelp 1.0.1 py_0 defaults sphinxcontrib-htmlhelp 1.0.2 py_0 defaults sphinxcontrib-jsmath 1.0.1 py_0 defaults sphinxcontrib-qthelp 1.0.2 py_0 defaults sphinxcontrib-serializinghtml 1.1.3 py_0 defaults sphinxcontrib-websupport 1.1.2 py_0 defaults spyder 3.3.6 py37_0 defaults spyder-kernels 0.5.2 py37_0 defaults sqlalchemy 1.3.10 py37he774522_0 defaults sqlite 3.30.1 he774522_0 defaults statsmodels 0.10.1 py37h8c2d366_0 defaults sympy 1.4 py37_0 defaults tbb 2019.4 h74a9793_0 defaults tblib 1.4.0 py_0 defaults terminado 0.8.2 py37_0 defaults testpath 0.4.2 py37_0 defaults tk 8.6.8 hfa6e2cd_0 defaults toolz 0.10.0 py_0 defaults tornado 6.0.3 py37he774522_0 defaults tqdm 4.36.1 py_0 defaults traitlets 4.3.3 py37_0 defaults unicodecsv 0.14.1 py37_0 defaults urllib3 1.24.2 py37_0 defaults vc 14.1 h0510ff6_4 defaults vs2015_runtime 14.16.27012 hf0eaf9b_0 defaults wcwidth 0.1.7 py37_0 defaults webencodings 0.5.1 py37_1 defaults werkzeug 0.16.0 py_0 defaults wheel 0.33.6 py37_0 defaults widgetsnbextension 3.5.1 py37_0 defaults win_inet_pton 1.1.0 py37_0 defaults win_unicode_console 0.5 py37_0 defaults wincertstore 0.2 py37_0 defaults winpty 0.4.3 4 defaults wrapt 1.11.2 py37he774522_0 defaults xlrd 1.2.0 py37_0 defaults xlsxwriter 1.2.2 py_0 defaults xlwings 0.16.0 py37_0 defaults xlwt 1.3.0 py37_0 defaults xz 5.2.4 h2fa13f4_4 defaults yaml 0.1.7 hc54c509_2 defaults zeromq 4.3.1 h33f27b4_3 defaults zict 1.0.0 py_0 defaults zipp 0.6.0 py_0 defaults zlib 1.2.11 h62dcd97_3 defaults zstd 1.3.7 h508b16e_0 defaults ```

[csoja]

It looks like you are might be having a conflict with a newly installed application or another version of python that has Qt installed. I'd recommend this issue: #10236 for tips on debugging what might be causing the trouble.