lua_lsp configuration error.

[Geez14]

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Describe the bug

lua_lsp fails to attach the buffer.
ISSUE: (#1884)
PR: (#1903)
the lsp_server still fails to attach to the buffer (client). Configuration validation error during runtime.

--[ERROR][2026-02-27 04:00:45] .../lua/vim/lsp.lua:509	'invalid "lua-language-server" config: /usr/share/nvim/runtime/lua/vim/lsp.lua:484: cmd: expected expected function or table with executable command, got nil'

when changed the vim.lsp.enable 'lua-language-server' (as per the resol

-- ~/.config/nvim/init.lua
      vim.lsp.config('lua-language-server', {
        on_init = function(client)
          if client.workspace_folders then
            local path = client.workspace_folders[1].name
            if path ~= vim.fn.stdpath 'config' and (vim.uv.fs_stat(path .. '/.luarc.json') or vim.uv.fs_stat(path .. '/.luarc.jsonc')) then return end
          end

          client.config.settings.Lua = vim.tbl_deep_extend('force', client.config.settings.Lua, {
            runtime = {
              version = 'LuaJIT',
              path = { 'lua/?.lua', 'lua/?/init.lua' },
            },
            workspace = {
              checkThirdParty = false,
              -- NOTE: this is a lot slower and will cause issues when working on your own configuration.
              --  See https://github.com/neovim/nvim-lspconfig/issues/3189
              library = vim.api.nvim_get_runtime_file('', true),
            },
          })
        end,
        settings = {
          Lua = {},
        },
      })
      vim.lsp.enable 'lua-language-server'
    end,
  },

value for the config it was giving:

[2026-02-27 04:17:17] .../lua/vim/lsp.lua:507	{ capabilities = { textDocument = { completion = { completionItem = { commitCharactersSupport = false, deprecatedSupport = true, documentationFormat = { "markdown", "plaintext" }, insertReplaceSupport = true, insertTextModeSupport = { valueSet = { 1 } }, labelDetailsSupport = true, preselectSupport = false, resolveSupport = { properties = { "documentation", "detail", "additionalTextEdits", "command", "data" } }, snippetSupport = true, tagSupport = { valueSet = { 1 } } }, completionList = { itemDefaults = { "commitCharacters", "editRange", "insertTextFormat", "insertTextMode", "data" } }, contextSupport = true, insertTextMode = 1 } } }, name = "lua-language-server", on_init = <function 1>, settings = { Lua = {} } }

Settings values are missing when vim.lsp.enable 'lua-language-server'
\b
But when I put vim.lsp.enable 'lua_ls' it works fine:

[2026-02-27 04:26:27] .../lua/vim/lsp.lua:507	 { capabilities = { textDocument = { completion = { completionItem = { commitCharactersSupport = false, deprecatedSupport = true, documentationFormat = { "markdown", "plaintext" }, insertReplaceSupport = true, insertTextModeSupport = { valueSet = { 1 } }, labelDetailsSupport = true, preselectSupport = false, resolveSupport = { properties = { "documentation", "detail", "additionalTextEdits", "command", "data" } }, snippetSupport = true, tagSupport = { valueSet = { 1 } } }, completionList = { itemDefaults = { "commitCharacters", "editRange", "insertTextFormat", "insertTextMode", "data" } }, contextSupport = true, insertTextMode = 1 } } }, cmd = { "lua-language-server" }, filetypes = { "lua" }, name = "lua_ls", root_markers = { { ".emmyrc.json", ".luarc.json", ".luarc.jsonc" }, { ".luacheckrc", ".stylua.toml", "stylua.toml", "selene.toml", "selene.yml" }, { ".git" } }, settings = { Lua = { codeLens = { enable = true }, hint = { enable = true, semicolon = "Disable" } } } }

Please check the `/usr/share/nvim/runtime/lua/vim/lsp.lua'.

To Reproduce

1. Goto ~/.config/nvim/init.lua
2. edit the lsp configuration of lua.
3. set vim.lsp.enable 'lua-language-server'
4. After refreshing the terminal and open any lua file or porject.
5. It won't attach the lsp server to the buffer (or the client).

Desktop

• OS: Linux VOILETDEVIL 6.12.73-1-MANJARO #1 SMP PREEMPT_DYNAMIC Mon, 16 Feb 2026 21:36:06 +0000 x86_64 GNU/Linux
• Terminal: Alacritty, Konsole

Neovim Version

NVIM v0.11.6
Build type: RelWithDebInfo
LuaJIT 2.1.1767980792