The languageserver crashed 4 times in the last 3 minutes with coc.nvim

[codic12]

Here's my CocConfig in vim:

{
  "languageserver": {
    "nim": {
      "command": "nimlsp",
      "filetypes": ["nim"],
      "trace.server": "verbose"
    }
  }
}

When I try to use it by opening a nim file I get

The languageserver crashed 4 times in the last 3 minutes 

I recall it working before on an older setup, and I saw some other issues too that look resolved; is there any way to fix this?

[codic12]

Ok, it only looks to happen on empty files 🤔

If I add something like import posix to the file and restart vim it works just fine.

[PMunch]

Hmm, that's strange. Might it be that Coc starts NimLSP before the file is created? That would possibly cause NimLSP to crash because the file was missing. If you could build NimLSP in debug mode and attach the debug log that would help shed some light on what's going on.

[uninhm]

Might it be that Coc starts NimLSP before the file is created?

[ ERROR ] 2021-08-16T23:19:55-0300 ] /usr/share/nvim/runtime/lua/vim/lsp/rpc.lua:462 ] "rpc" "nimlsp" "stderr" "cannot find file: /home/unai/test.nim\n"

You're right

Full log here.