youcompleteme requires vim compiled with python code example
Example: YouCompleteMe unavailable: requires Vim compiled with Python (3.6.0+) support.
Plug 'ycm-core/YouCompleteMe', { 'do': './install.py --tern-completer' }
Plug 'ycm-core/YouCompleteMe', { 'do': './install.py --tern-completer' }