Deoplete.nvim: Error: deoplete requires msgpack 1.0.0+.

[cherrry9]

Problems summary

After deoplete updated to latest version it doesn't load and I see: [deoplete] deoplete requires msgpack 1.0.0+.

Expected

Working deoplete

Environment Information

• deoplete version (SHA1): 1ec8428fc4a150756dc793295b44f7e62544b5ed

• OS: arch

• neovim/Vim :version output:
  NVIM v0.4.3
  Build type: Release
  LuaJIT 2.0.5
  Compilation: /usr/bin/cc -march=x86-64 -mtune=generic -O2 -pipe -fno-plt -O2 -DNDEBUG -DMIN_LOG_LEVEL=3 -Wall -Wextra -pedantic -Wno-unused-parameter -Wstrict-prototypes -std=gnu99 -Wshadow -Wconversion -Wmissing-prototypes -Wimplicit-fallthrough -Wvla -fstack-protector-strong -fdiagnostics-color=always -DINCLUDE_GENERATED_DECLARATIONS -D_GNU_SOURCE -DNVIM_MSGPACK_HAS_FLOAT32 -DNVIM_UNIBI_HAS_VAR_FROM -I/build/neovim/src/build/config -I/build/neovim/src/neovim-0.4.3/src -I/usr/include -I/build/neovim/src/build/src/nvim/auto -I/build/neovim/src/build/include
  Compiled by builduser
  Features: +acl +iconv +tui

• :checkhealth or :CheckHealth result(neovim only):

  • 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
  • ERROR: Require msgpack 1.0.0+ was not successful
  • ADVICE:
    
    
    
    • Please install/upgrade msgpack 1.0.0+.
    
    

Minimal init.vim/vimrc

call plug#begin('~/.config/nvim/bundle')

    Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }

call plug#end()
~/set runtimepath+=/home/jan/.config/nvim/bundle/deoplete.nvim
let g:deoplete#enable_at_startup = 1

How to reproduce the problem from neovim/Vim startup

1. Downloand/Install the latest version of deoplete.
2. Run neovim.

Generate a logfile if appropriate

1. export NVIM_PYTHON_LOG_FILE=/tmp/log
2. export NVIM_PYTHON_LOG_LEVEL=DEBUG
3. nvim -u minimal.vimrc
4. some works
5. cat /tmp/log_{PID}

Upload the log file

Log file is empty (I did everything as described)

Screenshot

https://0x0.st/iPpQ.png

What did I try to do?

Updated my OS
Reinstalled python-msgpack
Reinstalled deoplete

[somewacko]

I ran into this issue today too with Vim8/macOS. I fixed it by upgrading msgpack (naturally) but the trick was to upgrade msgpack for the version of Python that your Vim uses.

I have multiple Python installs via pyenv, so my solution was:

>>> pyenv global system  # Switch pyenv to the "system" python
>>> pyenv which pip3
/usr/local/bin/pip3
>>> pip3 install --upgrade msgpack

[codycraven]

I'm on Ubuntu (upgraded from last LTS) and haven't been able to get rid of this error with upgrading either Python 2 or 3 (note I had to install pip3):

$ pip3 install --upgrade msgpack
Requirement already up-to-date: msgpack in $HOME/.local/lib/python3.7/site-packages (1.0.0)

$ pip install --upgrade msgpack
Requirement already up-to-date: msgpack in $HOME/.local/lib/python2.7/site-packages (1.0.0)

Update Resolved
Running pip3 install for pynvim fixed:

pip3 install --user pynvim

[cherrry9]

Thanks you very much. @codycraven, you solved my problem.

[VictorYYW]

On my machine (arch linux), the issue can only be solved by

pip3 install --user pynvim --upgrade msgpack

Just want to make a note here in case others need it.

[djh-orphan]

I'm on Ubuntu (upgraded from last LTS) and haven't been able to get rid of this error with upgrading either Python 2 or 3 (note I had to install pip3):

$ pip3 install --upgrade msgpack
Requirement already up-to-date: msgpack in $HOME/.local/lib/python3.7/site-packages (1.0.0)

$ pip install --upgrade msgpack
Requirement already up-to-date: msgpack in $HOME/.local/lib/python2.7/site-packages (1.0.0)

Update Resolved
Running pip3 install for pynvim fixed:

pip3 install --user pynvim

Thanks a lot. It solved my problem！！！！

[lydialitvyak]

I can not solve same problem on rasspberrypi
Is there any advice please?

[Shougo]

You need to check your pip python is same with neovim python.
:checkhealth is recommended.
No magic.