Pressing Enter inserts <Lua function 58>

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Minimal reproducible full config

set completeopt=menu,menuone,noselect

call plug#begin('~/.vim/plugged')

" LSP
Plug 'neovim/nvim-lspconfig'
Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-buffer'
Plug 'hrsh7th/cmp-path'
Plug 'hrsh7th/cmp-cmdline'
Plug 'hrsh7th/nvim-cmp'

" Initialize plugin system
call plug#end()

" LSP
"
lua <<EOF
  -- Set up nvim-cmp.
  local cmp = require'cmp'

  cmp.setup({
    preselect = cmp.PreselectMode.None,
    mapping = cmp.mapping.preset.insert({
      ['<Tab>'] = function(fallback)
            if cmp.visible() then
              cmp.select_next_item()
            else
              fallback()
            end
          end,
      ['<C-b>'] = cmp.mapping.scroll_docs(-4),
      ['<C-f>'] = cmp.mapping.scroll_docs(4),
      ['<C-Space>'] = cmp.mapping.complete(),
      ['<C-e>'] = cmp.mapping.abort(),
      ["<CR>"] = cmp.mapping({
        i = function(fallback)
          if cmp.visible() and cmp.get_active_entry() then
            cmp.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = false })
          else
            fallback()
          end
        end,
        s = cmp.mapping.confirm({ select = false }),
        c = cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = false }),
      }),
    }),
    sources = cmp.config.sources({
      { name = 'nvim_lsp' },
    }, {
      { name = 'buffer' },
    })
  })

  -- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
  cmp.setup.cmdline({ '/', '?' }, {
    mapping = cmp.mapping.preset.cmdline(),
    sources = {
      { name = 'buffer' }
    }
  })

  -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
  cmp.setup.cmdline(':', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = cmp.config.sources({
      { name = 'path' }
    }, {
      { name = 'cmdline' }
    })
  })

  -- Set up lspconfig.
  local capabilities = require('cmp_nvim_lsp').default_capabilities()
  require('lspconfig')['tsserver'].setup{
    capabilities = capabilities,
    single_file_support = true,
    on_attach = function(_, bufnr)
      vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
      vim.api.nvim_buf_set_option(bufnr, 'tagfunc', 'v:lua.vim.lsp.tagfunc')
    end
  }
EOF

Description

Note: my configuration is for .js file

When opening any random .js file and pressing Enter in the empty space, <Lua function 58> is inserted instead of the newline. I couldn't get rid of this behavior by trying every <CR> mapping example I could find in this repository and nothing helps. Also preselect config does not help.

Steps to reproduce

Open .js file
press i to enter insert mode
press Enter

Expected behavior

newline is inserted

Actual behavior

<Lua function 58> is inserted

Additional context

Also it inserts <Lua function 58> in my init.vim file just by pressing enter in the empty line.

hrsh7th / nvim-cmp

Pressing Enter inserts <Lua function 58> #1709

FAQ