No effect of vim.lsp commands (help needed with setup) #31672

Gullumluvl · 2024-12-21T16:08:59Z

Gullumluvl
Dec 21, 2024

Hi there,

I am sorry this is probably going to be quite stupid, but I can't find out how to get the lsp commands to work.

I come from Vim.
I compiled Neovim 0.10.1 on a Centos 7.9 machine.

Problem:

Inside a Python buffer, when I type a command like :lua =vim.lsp.buf.references(), nothing happens. The pyright language server is not running on my system.

Steps I did to set up LSP:

Install nvim-lspconfig as recommended:
```
git clone https://github.com/neovim/nvim-lspconfig ~/.config/nvim/pack/nvim/start/nvim-lspconfig
```
One temporary problem I had was, from nvim, :help lspconfig initially said "no such help topic" or similar. I then tried
```
:helptags ~/.config/nvim/pack/nvim/start/nvim-lspconfig
```
which did not make the help available, but
```
:helptags ALL
```
did.
I installed pyright with micromamba (=conda).
I open a Python file, and execute :lua =require'lspconfig'.pyright.setup{}, which does not complain.

The output of :LspInfo is:


────────────────────────────────────                
lspconfig: require("lspconfig.health").check()

LSP configs active in this session (globally)
- Configured servers: pyright
- OK Deprecated servers: (none)

LSP configs active in this buffer (bufnr: 1)
- Language client log: ~/.local/state/nvim/lsp.log
- Detected filetype: python
- 0 client(s) attached to this buffer                                                                                                                                                                                                                                 
- Other clients that match the "python" filetype:                                                                                                                                                                  
- Config: pyright                                                                                                                                                                                                  
  filetypes:         python                                                                                                                                                                                        
  cmd:               ~/micromamba/envs/pyright/bin/pyright-langserver --stdio                                                                                                                                      
  version:           ? (Failed to get version) Tried:                                                                                                                                                              
  /home/Gullumluvl/micromamba/envs/pyright/bin/pyright-langserver --version                                                                                                                             
  /home/Gullumluvl/micromamba/envs/pyright/bin/pyright-langserver -version                                                                                                                              
  /home/Gullumluvl/micromamba/envs/pyright/bin/pyright-langserver version                                                                                                                               
  /home/Gullumluvl/micromamba/envs/pyright/bin/pyright-langserver --help                                                                                                                                
                                                                                                                                                                                                                   
  executable:        true                                                                                                                                                                                          
  autostart:         true                                                                                                                                                                                          
  root directory:    /home/Gullumluvl/Project/                                                                                                                                                           
                                                                                                                                                                                                                   
Docs for active configs:                                                                                                                                                                                           
- pyright docs:                                                                                                                                                                                                    
                                                                                                                                                                                                                   
  https://github.com/microsoft/pyright                                                                                                                                                                             
                                                                                                                                                                                                                   
  `pyright`, a static type checker and language server for python

And the output of :checkhealth vim.lsp is:

                                                                                                                                 
─────────────────────────────────────
vim.lsp: require("vim.lsp.health").check()

- LSP log level : WARN
- Log path: /home/Gullumluvl/.local/state/nvim/lsp.log
- Log size: 0 KB

vim.lsp: Active Clients
- No active clients

vim.lsp: File Watcher
- file watching "(workspace/didChangeWatchedFiles)" disabled on all clients

vim.lsp: Position Encodings
- No active clients

Why does it say "No active client" ??
Indeed, pyright is not running. But I did not get any error message when calling the lspconfig setup command.

Thanks a lot for your help!

[EDIT] Sorry, please wait, I just found that the pyright-python-langserver --stdio command fails when I launch it manually (missing a library). Must switch hosts to see where it should be able to run.
[EDIT 2] Meanwhile I tried with the nextflow_ls config, for which the language server can successfully run from a terminal. Still nothing happens, and checkhealth lsp shows no active client.

Gullumluvl · 2024-12-21T17:08:53Z

Gullumluvl
Dec 21, 2024
Author

Okay, it seems to be caused by failing to properly install either the language server executable, or the config.

I successfully started the Ruff LSP from Nvim by doing:

pipx install ruff

then from Nvim: LspStart ruff.

weirdly, LspStart nextflow_ls fails to start the server, and I don't know why.

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No effect of vim.lsp commands (help needed with setup) #31672

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No effect of vim.lsp commands (help needed with setup) #31672

Gullumluvl Dec 21, 2024

Problem:

Steps I did to set up LSP:

Replies: 1 comment

Gullumluvl Dec 21, 2024 Author

Gullumluvl
Dec 21, 2024

Gullumluvl
Dec 21, 2024
Author