Vim问题 ValueError: Still no compile flags, no completions yet

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这个是因为ycm_extra_conf没有提供给YouCompleteMe编译标志，具体参见这个issue

https://github.com/Valloric/YouCompleteMe/issues/700

解决方法：

Set below in vimrc works fine. (设置对应的.ycm_extra_conf.py的路径)

1
let g:ycm_global_ycm_extra_conf = '/root/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'