Failed to run healthcheck for "vim.lsp" plugin. Exception

[nabezokodaikon]

Neovim version (nvim -v)

NVIM v0.8.0-dev+1684-g6613f58ce

Vim (not Nvim) behaves the same?

no, vim

Operating system/version

macOS 12.3.1

Terminal name/version

iTerm2

$TERM environment variable

screen-256color

Installation

home brew

How to reproduce the issue

Start neovim.
run checkhealth.

Expected behavior

checkhealth does not detect any errors.

Actual behavior

vim.lsp: require("vim.lsp.health").check()
========================================================================
  - ERROR: Failed to run healthcheck for "vim.lsp" plugin. Exception:
    function health#check, line 20
    Vim(eval):E5108: Error executing lua ...m/HEAD-6613f58/share/nvim/runtime/lua/vim/lsp/health.lua:20: attempt to index a nil value
    stack traceback:
    ...m/HEAD-6613f58/share/nvim/runtime/lua/vim/lsp/health.lua:20: in function 'check'
    [string "luaeval()"]:1: in main chunk

[clason]

This is the check for the size of the log file, which (now) is almost never written to unless you set the log level yourself. You need to replace the mentioned line 20 in lsp/health.lua by

local log_file = vim.loop.fs_stat(log_path)
local log_size = log_file and logfile.size or 0

[nabezokodaikon]

Where should I place lsp/health.lua?

[clason]

It's under runtime/lua. (To be clear, that is a bug in Neovim's runtime file that should be fixed. PR welcome!)

[nabezokodaikon]

difficult...

[clason]

Not really, but you don't have to do it. You'll just have to wait for someone else, then.

[nabezokodaikon]

By the way, when I set health.lua, the number of errors increased.

lsp: require("lsp.health").check()
========================================================================
  - ERROR: Failed to run healthcheck for "lsp" plugin. Exception:
    function health#check, line 20
    Vim(eval):E5108: Error executing lua [string "luaeval()"]:1: attempt to index a boolean value
    stack traceback:
    [string "luaeval()"]:1: in main chunk

[nabezokodaikon]

confirmed. Thank you!