Unknown function: elm#FindRootDirectory

[mstruebing]

I'm getting this error message: Unknown function: elm#FindRootDirectory
When I open an elm-file within neovim.

I'm using ElmCast/elm-vim as a plugin to write elm code.

I know I could simply remove this plugin but I want to use it.

Also I figured out that I'm not be able to use any commands from ElmCast/elm-vim like :ElmFormat for example even if they are suggested in the wildmenu, but the syntax highlighting of this plugin is working.

I've installed the plugin via vim-plug:

call plug#begin('~/.vim/vim-plug-plugins')
    Plug 'elmcast/elm-vim'
call plug#end()

I also ran :PlugUpdate and :PlugUpgrade multiple times.

neovim CheckHealth says this:

    health#deoplete#check
    ========================================================================
    ## deoplete.nvim
      - SUCCESS: has("nvim") was successful
      - SUCCESS: has("python3") was successful
      - INFO: 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
    
    health#nvim#check
    ========================================================================
    ## Configuration
      - SUCCESS: no issues found
    
    ## Performance
      - SUCCESS: Build type: Release
    
    ## Remote Plugins
      - SUCCESS: Up to date
    
    ## terminal
      - INFO: key_backspace (kbs) terminfo entry: key_backspace=^H
      - INFO: key_dc (kdch1) terminfo entry: key_dc=\E[3~
    
    ## tmux
      - SUCCESS: escape-time: 10ms
      - INFO: $TERM: screen-256color
    
    health#provider#check
    ========================================================================
    ## Clipboard (optional)
      - SUCCESS: Clipboard tool found: xsel
    
    ## Python 2 provider (optional)
      - INFO: `g:python_host_prog` is not set.  Searching for python2 in the environment.
      - INFO: Executable: /usr/bin/python2
      - INFO: Python2 version: 2.7.14
      - INFO: python2-neovim version: 0.1.13
      - SUCCESS: Latest python2-neovim is installed: 0.1.13
    
    ## Python 3 provider (optional)
      - INFO: `g:python3_host_prog` is not set.  Searching for python3 in the environment.
      - INFO: Executable: /usr/bin/python3
      - INFO: Python3 version: 3.6.2
      - INFO: python3-neovim version: 0.1.13
      - SUCCESS: Latest python3-neovim is installed: 0.1.13
    
    ## Ruby provider (optional)
      - INFO: Ruby: ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-linux]
      - WARNING: Missing "neovim" gem.
        - SUGGESTIONS:
          - Run in shell: gem install neovim
          - Is the gem bin directory in $PATH? Check `gem environment`.
          - If you are using rvm/rbenv/chruby, try "rehashing".

Here is my corresponding stackoverflow question: https://stackoverflow.com/questions/46514052/unknown-function-elmfindrootdirectory

[arnau]

Related to #133 and #134

[arcseldon]

https://stackoverflow.com/a/46669126/1882064