deoplete fails to load

[bon-ami]

Problems summary

I reinstalled neovim and get plugins with Plug. deoplete did not pop auto completion and I had to ^X^O. If I use some GUI for neovim, such as neoray or neovide, a line of _deoplete_init failure flashed in status line. Then I use a minimal init.vim with Plug and deoplete only. Now neovim shows the failure.

It worked before I deleted some data and reinstalled everything. I removed python 3.9 and installed 3.8.5. Thanks in advance.

Environment Information

• deoplete version (SHA1): e5a47d4a2f0b2b6f568e708163e2354097e611c6 (June 6)

• OS: Windows 10

• neovim/Vim :version output: 0.10.1

• :checkhealth result(neovim only):

  
  deoplete: health#deoplete#check

deoplete.nvim ~

• OK exists("v:t_list") was successful
• OK has("timers") was successful
• OK has("python3") was successful
• OK Require Python 3.6.1+ was successful
• OK Require msgpack 1.0.0+ was successful
• If you're still having problems, try the following commands:
  • $ export NVIM_PYTHON_LOG_FILE=/tmp/log
  • $ export NVIM_PYTHON_LOG_LEVEL=DEBUG
  • $ nvim
  • $ cat /tmp/log_{PID}
  • and then create an issue on github

============================================================================== nvim: require("nvim.health").check()

Configuration ~

• OK no issues found

Runtime ~

• OK $VIMRUNTIME: D:\nvim-win64\share/nvim/runtime

Performance ~

• OK Build type: Release

Remote Plugins ~

• OK Up to date

External Tools ~

• WARNING ripgrep not available

  provider.python: require("provider.python.health").check()

Python 3 provider (optional) ~

• Using: g:python3_host_prog = "D:\apps\Python3\python.exe"
• Executable: D:\apps\Python3\python.exe
• Python version: 3.8.5
• pynvim version: 0.5.0
• OK Latest pynvim is installed.

Python virtualenv ~

• OK no $VIRTUAL_ENV

  vim.lsp: require("vim.lsp.health").check()

• LSP log level : WARN

• Log path: C:\Users\myusername\AppData\Local\nvim-data/lsp.log

• Log size: 0 KB

vim.lsp: Active Clients ~

• No active clients

vim.lsp: File Watcher ~

• file watching "(workspace/didChangeWatchedFiles)" disabled on all clients

vim.lsp: Position Encodings ~

• No active clients

python

Requirement already satisfied: pynvim in d:\apps\python3\lib\site-packages (0.5.0)
Requirement already satisfied: msgpack>=0.5.0 in d:\apps\python3\lib\site-packages (from pynvim) (1.0.8)
Requirement already satisfied: greenlet>=3.0 in d:\apps\python3\lib\site-packages (from pynvim) (3.0.3)
Requirement already satisfied: neovim in d:\apps\python3\lib\site-packages (0.3.1)

Provide a minimal init.vim with less than 50 lines (Required!)

" Use Vim settings, rather than Vi settings (much better!).
" This must be first, because it changes other options as a side effect.
set nocompatible

packadd! matchit

let g:python3_host_prog = 'D:\\apps\\Python3\\python.exe'  " Python 3

call plug#begin()

if has('nvim')
  Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
else
  Plug 'Shougo/deoplete.nvim'
  Plug 'roxma/nvim-yarp'
  Plug 'roxma/vim-hug-neovim-rpc'
endif

call plug#end()

let g:deoplete#enable_at_startup = 1
call deoplete#custom#option('sources', { '_': ['file'] })

" Load all plugins now.
" Plugins need to be added to runtimepath before helptags can be generated.
packloadall
" Load all of the helptags now, after plugins have been loaded.
" All messages and errors will be ignored.
silent! helptags ALL

removing source option does not help

:UpdateRemotePlugins shows

remote/host: python3 host registered plugins []
remote/host: generated rplugin manifest: C:\Users\myusername\AppData\Local\nvim-data/rplugin.vim

my C:\Users\myusername\AppData\Local\nvim-data\rplugin.vim

" perl plugins

" node plugins

" python3 plugins

" ruby plugins

How to reproduce the problem from neovim/Vim startup (Required!)

1. run nvim with minimal init.vim
2. in status line: "deoplete failed to load. Try the :UpdateR..."
3. "call deoplete#enable()" shows "Unknown function: _deoplete_init" and lines below

   [deoplete] function deoplete#enable[9]..deoplete#initialize[1]..deoplete#init#_initialize[15]..deoplete#init#_channel, line 31
   [deoplete] deoplete failed to load. Try the :UpdateRemotePlugins command and restart Neovim. See also :checkhealth and :messages output.

4. I commented out call _deoplete_init() in deoplete.nvim\autoload\deoplete\init.vim, then no error is shown - of course it is not loaded. Then I found this function is defined in rplugin/python3/deoplete/init.py. So I doubt the issue is I cannot install the remote plugin.

Generate a logfile if appropriate

1. set NVIM_PYTHON_LOG_FILE=/tmp/log
2. set NVIM_PYTHON_LOG_LEVEL=DEBUG
3. nvim
4. auto completion not working
5. no log files with minimal init.vim and log files are empty with full init.vim

[Shougo]

Sorry. I don't know why it does not work. Because it is neovim remote plugin issue.

You should use ddc.vim instead. Deoplete and remote plugin are deprecated architecture.

[Shougo]

But g:python3_host_prog is really executable? You should check it.

:echo g:python3_host_prog->executable()

[Shougo]

Requirement already satisfied: neovim in d:\apps\python3\lib\site-packages (0.3.1)

This package is conflicted with pynvim. Please remove it.

[bon-ami]

@Shougo , thanks for your quick reply. pip uninstall neovim while keeping pynvim, etc. does not help. Anyway, I'm switching to ddc.vim.

[Shougo]

OK.