Mason command is not working

[ramojus]

I've searched open issues for similar requests

• [X] Yes

I've recently downloaded the latest plugin version of mason.nvim

• [x] Yes

Problem description

Executing :Mason returns an error:

Error executing vim.schedule lua callback: ...share/nvim/lazy/mason.nvim/lua/mason-core/ui/display.lua:111: attempt to concatenate local 'content' (a nil value)                                                                               
stack traceback:                                                                                                                                                                                                                                
        ...share/nvim/lazy/mason.nvim/lua/mason-core/ui/display.lua:111: in function 'render_node'                                                                                                                                              
        ...share/nvim/lazy/mason.nvim/lua/mason-core/ui/display.lua:141: in function 'render_node'                                                                                                                                              
        ...share/nvim/lazy/mason.nvim/lua/mason-core/ui/display.lua:141: in function 'render_node'                                                                                                                                              
        ...share/nvim/lazy/mason.nvim/lua/mason-core/ui/display.lua:141: in function 'render_node'                                                                                                                                              
        ...share/nvim/lazy/mason.nvim/lua/mason-core/ui/display.lua:292: in function 'draw'                                                                                                                                                     
        ...share/nvim/lazy/mason.nvim/lua/mason-core/ui/display.lua:521: in function ''                                                                                                                                                         
        vim/_editor.lua: in function <vim/_editor.lua:0>

Expected behavior

Executing :Mason opens Mason UI window

Steps to reproduce

1. Install mason and add this line to neovim config

   require 'mason'.setup()

2. Reload Neovim and run :Mason

Neovim version (>= 0.7)

NVIM v0.10.0 Build type: Release LuaJIT 2.1.1693350652

Operating system/version

Linux tux 6.1.91 #1-NixOS SMP PREEMPT_DYNAMIC Fri May 17 09:56:25 UTC 2024 x86_64 GNU/Linux

Healthcheck output

==============================================================================
mason: require("mason.health").check()

mason.nvim ~
- OK mason.nvim version v1.10.0
- OK PATH: prepend
- OK Providers: 
    mason.providers.registry-api
    mason.providers.client
- OK neovim version >= 0.7.0

mason.nvim [Registries] ~
- OK Registry `github.com/mason-org/mason-registry version: 2024-05-24-wild-trust` is installed.

mason.nvim [Core utils] ~
- OK unzip: `UnZip 6.00 of 20 April 2009, by Info-ZIP.  Maintained by C. Spieler.  Send`
- OK wget: `GNU Wget 1.21.4 built on linux-gnu.`
- OK curl: `curl 8.4.0 (x86_64-pc-linux-gnu) libcurl/8.4.0 OpenSSL/3.0.13 zlib/1.3 brotli/1.1.0 zstd/1.5.5 libidn2/2.3.4 libssh2/1.11.0 nghttp2/1.57.0`
- OK gzip: `gzip 1.13`
- OK tar: `tar (GNU tar) 1.35`
- OK bash: `GNU bash, version 5.2.15(1)-release (x86_64-pc-linux-gnu)`
- OK sh: `Ok`

mason.nvim [Languages] ~
- WARNING luarocks: not available
  - ADVICE:
    - spawn: luarocks failed with exit code - and signal -. luarocks is not executable
- OK Go: `go version go1.22.2 linux/amd64`
- OK Ruby: `ruby 3.1.5p252 (2024-04-23 revision 1945f8dc0e) [x86_64-linux]`
- OK PHP: `PHP 8.2.19 (cli) (built: May  7 2024 14:19:14) (NTS)`
- OK node: `v20.12.2`
- WARNING javac: not available
  - ADVICE:
    - spawn: javac failed with exit code - and signal -. javac is not executable
- OK cargo: `cargo 1.77.1 (e52e36006 2024-03-26)`
- OK julia: `julia version 1.10.3`
- OK Composer: `Composer version 2.7.6 2024-05-04 23:03:15`
- OK python: `Python 3.11.9`
- OK RubyGem: `3.5.9`
- OK java: `openjdk version "21" 2023-09-19`
- WARNING pip: not available
  - ADVICE:
    - spawn: python3 failed with exit code 1 and signal 0. /home/ramojus/.nix-profile/bin/python3: No module named pip

- OK npm: `10.5.0`
- OK python venv: `Ok`

mason.nvim [GitHub] ~
- OK GitHub API rate limit. Used: 0. Remaining: 5000. Limit: 5000. Reset: 2024 m. gegužės 24 d. 19:50:54.

Screenshots

No response

[ramojus]

I'm really confused as to why I seem to be the only one getting this error. I've tried reinstalling mason, and not setting up any servers, but I still get this error. And it's been like this for a couple of months now

[JordanJonThomas]

Same issue here.

[ramojus]

I'm not exactly sure why, but removing one of these folders helped me:

~/.local/share/nvim
~/.local/state/nvim
~/.cache/nvim

I was trying different neovim configs and removed all of them. When I came back to my original config that had this issue, the issue was gone. Try this at your own risk, some neovim history (e.g. previously executed commands) might be lost.