Auto completion not working with godot language server.

[Khelthal]

Result from CocInfo

versions

vim version: NVIM v0.4.4
node version: v15.11.0
coc.nvim version: 0.0.80-9184dcccc4
coc.nvim directory: /home/elias/.vim/plugged/coc.nvim
term: xterm-termite
platform: linux

Log of coc.nvim

2021-03-08T22:51:54.088 INFO (pid:11142) [services] - registered service "languageserver.godot"
2021-03-08T22:51:54.094 INFO (pid:11142) [services] - godot state change: stopped => starting
2021-03-08T22:51:54.095 INFO (pid:11142) [services] - languageserver "languageserver.godot" connecting to 127.0.0.1:6008
2021-03-08T22:51:54.153 INFO (pid:11142) [plugin] - coc.nvim 0.0.80-9184dcccc4 initialized with node: v15.11.0 after 158ms
2021-03-08T22:51:54.201 INFO (pid:11142) [services] - godot state change: starting => running
2021-03-08T22:51:54.209 INFO (pid:11142) [services] - service languageserver.godot started
2021-03-08T22:51:54.883 INFO (pid:11142) [attach] - receive notification: highlight []
2021-03-08T22:51:56.413 INFO (pid:11142) [completion-complete] - Results from: languageserver.godot-1
2021-03-08T22:51:57.165 INFO (pid:11142) [attach] - receive notification: stopCompletion []
2021-03-08T22:51:57.168 INFO (pid:11142) [attach] - receive request: doKeymap [ 'iPGJzPg==0' ]
2021-03-08T22:51:57.171 INFO (pid:11142) [attach] - receive notification: stopCompletion []
2021-03-08T22:51:57.358 INFO (pid:11142) [attach] - receive request: doKeymap [ 'iPGJzPg==0' ]
2021-03-08T22:51:58.208 INFO (pid:11142) [completion-complete] - Results from: languageserver.godot-1
2021-03-08T22:52:02.573 INFO (pid:11142) [attach] - receive notification: showInfo []

Describe the bug

Im getting a problem when I try to use auto completion in the godot language server. Im using godot 3.2.3. Every time that I press Enter to select a completion, it auto-deletes and the output "[coc.nvim] Command: not found" is shown.

Reproduce the bug

• Create file mini.vim with：

  call plug#begin('~/.vim/plugged')
  Plug 'neoclide/coc.nvim', {'branch': 'release'}
  Plug 'habamax/vim-godot'
  call plug#end()
  
  " Config
  set completeopt=menuone,noinsert,noselect
  "highlight Pmenu ctermbg=gray guibg=gray
  set number
  set nowrap
  set tabstop=2
  set shiftwidth=2
  set expandtab
  set encoding=UTF-8
  
  " Coc
  " TextEdit might fail if hidden is not set.
  set hidden
  
  " Some servers have issues with backup files, see #649.
  set nobackup
  set nowritebackup
  
  " Give more space for displaying messages.
  set cmdheight=2
  
  " Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
  " delays and poor user experience.
  set updatetime=300
  
  " Don't pass messages to |ins-completion-menu|.
  set shortmess+=c
  
  " Always show the signcolumn, otherwise it would shift the text each time
  " diagnostics appear/become resolved.
  if has("patch-8.1.1564")
    " Recently vim can merge signcolumn and number column into one
    set signcolumn=number
  else
    set signcolumn=yes
  endif
  
  " Use tab for trigger completion with characters ahead and navigate.
  " NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
  " other plugin before putting this into your config.
  inoremap <silent><expr> <TAB>
        \ pumvisible() ? "\<C-n>" :
        \ <SID>check_back_space() ? "\<TAB>" :
        \ coc#refresh()
  inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
  
  function! s:check_back_space() abort
    let col = col('.') - 1
    return !col || getline('.')[col - 1]  =~# '\s'
  endfunction
  
  " Use <c-space> to trigger completion.
  if has('nvim')
    inoremap <silent><expr> <c-space> coc#refresh()
  else
    inoremap <silent><expr> <c-@> coc#refresh()
  endif
  
  " Make <CR> auto-select the first completion item and notify coc.nvim to
  " format on enter, <cr> could be remapped by other vim plugin
  inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                                \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
  
  " Use `[g` and `]g` to navigate diagnostics
  " Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
  nmap <silent> [g <Plug>(coc-diagnostic-prev)
  nmap <silent> ]g <Plug>(coc-diagnostic-next)
  
  " GoTo code navigation.
  nmap <silent> gd <Plug>(coc-definition)
  nmap <silent> gy <Plug>(coc-type-definition)
  nmap <silent> gi <Plug>(coc-implementation)
  nmap <silent> gr <Plug>(coc-references)
  
  " Use K to show documentation in preview window.
  nnoremap <silent> K :call <SID>show_documentation()<CR>
  
  function! s:show_documentation()
    if (index(['vim','help'], &filetype) >= 0)
      execute 'h '.expand('<cword>')
    elseif (coc#rpc#ready())
      call CocActionAsync('doHover')
    else
      execute '!' . &keywordprg . " " . expand('<cword>')
    endif
  endfunction
  
  " Highlight the symbol and its references when holding the cursor.
  autocmd CursorHold * silent call CocActionAsync('highlight')
  
  " Symbol renaming.
  nmap <leader>rn <Plug>(coc-rename)
  
  " Formatting selected code.
  xmap <leader>f  <Plug>(coc-format-selected)
  nmap <leader>f  <Plug>(coc-format-selected)
  
  augroup mygroup
    autocmd!
    " Setup formatexpr specified filetype(s).
    autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
    " Update signature help on jump placeholder.
    autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
  augroup end
  
  " Applying codeAction to the selected region.
  " Example: `<leader>aap` for current paragraph
  xmap <leader>a  <Plug>(coc-codeaction-selected)
  nmap <leader>a  <Plug>(coc-codeaction-selected)
  
  " Remap keys for applying codeAction to the current buffer.
  nmap <leader>ac  <Plug>(coc-codeaction)
  " Apply AutoFix to problem on the current line.
  nmap <leader>qf  <Plug>(coc-fix-current)
  
  " Map function and class text objects
  " NOTE: Requires 'textDocument.documentSymbol' support from the language server.
  xmap if <Plug>(coc-funcobj-i)
  omap if <Plug>(coc-funcobj-i)
  xmap af <Plug>(coc-funcobj-a)
  omap af <Plug>(coc-funcobj-a)
  xmap ic <Plug>(coc-classobj-i)
  omap ic <Plug>(coc-classobj-i)
  xmap ac <Plug>(coc-classobj-a)
  omap ac <Plug>(coc-classobj-a)
  
  " Remap <C-f> and <C-b> for scroll float windows/popups.
  if has('nvim-0.4.0') || has('patch-8.2.0750')
    nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
    nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
    inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
    inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
    vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
    vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
  endif
  
  " Use CTRL-S for selections ranges.
  " Requires 'textDocument/selectionRange' support of language server.
  nmap <silent> <C-s> <Plug>(coc-range-select)
  xmap <silent> <C-s> <Plug>(coc-range-select)
  
  " Add `:Format` command to format current buffer.
  command! -nargs=0 Format :call CocAction('format')
  
  " Add `:Fold` command to fold current buffer.
  command! -nargs=? Fold :call     CocAction('fold', <f-args>)
  
  " Add `:OR` command for organize imports of the current buffer.
  command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')
  
  " Add (Neo)Vim's native statusline support.
  " NOTE: Please see `:h coc-status` for integrations with external plugins that
  " provide custom statusline: lightline.vim, vim-airline.
  set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}
  
  " Mappings for CoCList
  " Show all diagnostics.
  nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
  " Manage extensions.
  nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
  " Show commands.
  nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
  " Find symbol of current document.
  nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
  " Search workspace symbols.
  nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
  " Do default action for next item.
  nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
  " Do default action for previous item.
  nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
  " Resume latest coc list.
  nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>

• Start neovim with command: vim -u mini.vim

• Try to use auto completion with a godot file (.gd)

• The configuration of the godot language server:

  {
    "suggest.maxCompleteItemCount": 10,
    "suggest.defaultSortMethod": "alphabetical",
    "languageserver": {
      "godot": {
          "host": "127.0.0.1",
          "filetypes": ["gdscript"],
          "port": 6008,
          "trace.server": "verbose"
      }
    }
  }

Screenshots

[chemzqm]

Please provide verbose output from language server.

[fannheyward]

godotengine/godot#34523 (comment)

[chemzqm]

Seems the server send command that not exists, should be fixed by d09f354

[avahe-kellenberger]

I'm having a very similar issue, but the only output in my CocInfo after I attempt a completion is:

2021-04-08T14:38:52.066 INFO (pid:1300958) [attach] - receive notification: highlight []
2021-04-08T14:38:53.181 INFO (pid:1300958) [attach] - receive notification: highlight []
2021-04-08T14:38:53.574 INFO (pid:1300958) [attach] - receive notification: highlight []
2021-04-08T14:38:55.587 INFO (pid:1300958) [attach] - receive notification: highlight []
2021-04-08T14:38:58.513 INFO (pid:1300958) [attach] - receive notification: highlight []
2021-04-08T14:38:59.501 INFO (pid:1300958) [completion-complete] - Results from: languageserver.godot
2021-04-08T14:39:01.856 INFO (pid:1300958) [attach] - receive notification: highlight []
2021-04-08T14:39:03.852 INFO (pid:1300958) [attach] - receive notification: showInfo []

I'm not sure why this would be deleting the suggestion.
Afterward, I can escape to normal mode and u to bring back the completion text that was erased.

[Khelthal]

Try adding this to your init.vim

inoremap <expr> <CR> complete_info().selected != -1 ?
            \ &filetype == "gdscript3" ? (coc#expandable() ?  "\<C-y>" : "\<C-y><Esc>a") : "\<C-y>"
            \ : "\<C-g>u\<CR>"

[avahe-kellenberger]

Found out after digging through plugins,
it's somehow caused by tmsvg/pear-tree.

[julkip]

I am having the same issue using VIM 8.2.2859. I am not using the tmsvg/pear-tree Plugin, but I still have the same issue.
Adding the inoremap to my .vimrc does work for this issue, but creates a whole new issue, that I cannot press Enter at all while in Insert-mode.

[julkip]

Funnily enough, when i use neovim 0.4.4 the error still occurs and adding inoremap to my init.vim doesn't help at all, but the Insert-Mode Enter key is also not borked…

[ChenHuaYou]

Try adding this to your init.vim

inoremap <expr> <CR> complete_info().selected != -1 ?
            \ &filetype == "gdscript3" ? (coc#expandable() ?  "\<C-y>" : "\<C-y><Esc>a") : "\<C-y>"
            \ : "\<C-g>u\<CR>"

many thanks, this work for me

inoremap complete_info().selected != -1 ?
\ &filetype == "gdscript" ? (coc#expandable() ? "<C-y>" : "<C-y>a") : "<C-y>"
\ : "<C-g>u<CR>"