omisharp stop working suddenly: missing PATH or not executable

[benzwt]

I'm still stick with v2.0
My omnisharp stop working suddenly.

• /home/xxx/.local/share/nvim/mason/bin/omnisharp exists and executable!
• omnisharp is in mason list

help is needed ! thanks!

/usr/share/nvim/runtime/lua/vim/lsp/rpc.lua:800: Spawning language server with cmd: `{ "-z", "--hostPID", "275779", "DotNet:enab
lePackageRestore=false", "--encoding", "utf-8", "--languageserver", "FormattingOptions:EnableEditorConfigSupport=true", "Sdk:Inc
ludePrereleases=true" }` failed. The language server is either not installed, missing from PATH, or not executable.

and my lspconfig.lua is as follows:

local on_attach = function(client, bufnr)
  client.server_capabilities.documentFormattingProvider = false
  client.server_capabilities.documentRangeFormattingProvider = false

  require("core.utils").load_mappings("lspconfig", { buffer = bufnr })

  if client.server_capabilities.signatureHelpProvider then
    require("nvchad.signature").setup(client)
  end

  if not require("core.utils").load_config().ui.lsp_semantic_tokens and client.supports_method "textDocument/semanticTokens" then
    client.server_capabilities.semanticTokensProvider = nil
  end

  if client.server_capabilities.documentSymbolProvider then
    require("nvim-navic").attach(client, bufnr)
  end
end


-- local on_attach = require("plugins.configs.lspconfig").on_attach
local capabilities = require("plugins.configs.lspconfig").capabilities
local lspconfig = require "lspconfig"
-- local util = require "lspconfig/util"

-- if you just want default config for the servers then put them in a table
-- local servers = { "rust_analyzer", "lua_ls", "clangd", "ltex"}
local servers = { "lua_ls", "taplo", "clangd", "marksman", "pyright", "omnisharp"}


for _, lsp in ipairs(servers) do
  lspconfig[lsp].setup {
    on_attach = on_attach,
    capabilities = capabilities,
  }
end

[siduck]

open a terminal within neovim and run omnisharp command

[benzwt]

Yes, I did. the omnisharp can be ran by issuing /home/xxx/.local/share/nvim/mason/bin/omnisharp in bash prompt.

However, I got this issue solved by adapting the chatgpt-4o 's answer.
A short lspconfig setup was appended to my lspconfig.lua.

But I still don't know why onmisharp stopped working out of the blue.
@siduck
Please review this code, see whether it's the best solution.
thanks!

lspconfig.omnisharp.setup({
	cmd = { "omnisharp", "--languageserver", "--hostPID", tostring(vim.fn.getpid()) },
	root_dir = lspconfig.util.root_pattern("*.csproj", "*.sln"),
	settings = {
		omnisharp = {
			FormattingOptions = {
				EnableEditorConfigSupport = true
			},
			Sdk = {
				IncludePrereleases = true
			}
		}
    },
    on_attach = on_attach,
    capabilities = capabilities,
})

[siduck]

@benzwt i think specifying its cmd is a must, these difficult LSPS are always tricky to setup, like c# lsp, kotlin and java 😂