VIM无法补全错误记录

写入：

" description: configuration of vim
" author: phillee
" date:    2019-06-04
" email: phillee2016@163.com

set nocompatible            " be iMproved, required
filetype off                " required

" set the runtime path to include Vundle and initialize
set runtimepath+=/home/cv/.vim/bundle/Vundle.vim
set runtimepath+=/home/cv/.vim/bundle/ctrlp.vim
set runtimepath+=/home/cv/.vim/bundle/ultisnips

call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
" call vundle#begin(‘~/some/path/here‘)

" let Vundle manage Vundle, required
Plugin ‘VundleVim/Vundle.vim‘
" The following are examples of different formats supported.
" Keep Plugin commands between vundle#begin/end.

" plugin on GitHub repo
Plugin ‘tpope/vim-fugitive‘
Plugin ‘Valloric/YouCompleteMe‘
Plugin ‘vim-syntastic/syntastic‘
Plugin ‘nvie/vim-flake8‘

" " Track the engine
Plugin ‘SirVer/ultisnips‘

" Snippets are separated from the engine.
Plugin ‘honza/vim-snippets‘

" plugin from http://vim-scripts.org/vim/scripts.html
" Plugin ‘L9‘
" Git plugin not hosted on GitHub
" Plugin ‘git://git.wincent.com/command-t.git‘

" git repos on your local machine(i.e. when working on your own plugin)
" Plugin ‘file://home/gmarik/path/to/plugin‘

" The sparkup vim script is in a subdirectory of this repo called vim.
" Pass the path to set the runtimepath properly.
" Plugin ‘rstacruz/sparkup‘, {‘rtp‘: ‘vim/‘}

" Install L9 and avoid a Naming conflict if you‘ve already install a different version somewhere else.
" Plugin ‘ascenator/L9‘, {‘name‘: ‘newL9‘}
                        
" Define bundles via GitHub repo
Bundle ‘scrooloose/nerdtree‘

" All of your Plugins must be added before the following line
call vundle#end()

filetype plugin indent on

" To ignore plugin indent changes, instead use:
" filetype plugin on

" Brief help
" :PluginList                - lists configured plugins
" :PluginInstall            - installs plugins; append ‘!‘ to update or just :PluginUpdate
" :PluginSearch foo            - searches for foo; append ‘!‘ to refresh local cache
" :PluginClean                - confirms removal of unused plugins; append ‘!‘ to auto-approve removal

" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line

set number
set numberwidth=5

set tabstop=4
set background=dark
set showcmd
set encoding=utf-8

" Default conf file path
let g:ycm_global_ycm_extra_conf=‘~/.vim/.ycm_extra_conf.py‘
" No query for loading ycm_extra_conf.py configuration when vim is opened
let g:ycm_confirm_extra_conf=0

let g:ycm_use_clangd=0

set completeopt=longest,menu
                            
" path of python Interpreter
let g:ycm_path_to_python_interpreter=‘/usr/bin/python‘
" Enable complete syntax
let g:ycm_seed_identifiers_with_syntax=1

" Enable or not complete even in the comments
let g:ycm_complete_in_comments=1
let g:ycm_collect_identifiers_from_comments_and_strings=0
let g:ycm_collect_identifiers_from_tags_files=1
let g:ycm_min_num_of_chars_for_completion=2
let g:ycm_autoclose_preview_window_after_completion=1
let g:ycm_cache_omnifunc=0
let g:ycm_complete_in_strings=1

let python_highlight_all=1
syntax on
au BufNewFile,BufRead *.py
    \ set tabstop=4    |
    \ set softtabstop=4    |
    \ set shiftwidth=4    |
    \ set textwidth=79    |
    \ set expandtab    |
    \ set autoindent    |
    \ set fileformat=unix

"Autoclose preview window when leave the insert mode
autocmd InsertLeave * if pumvisible()==0|pclose|endif

"The user-defined action of the direction keys"
inoremap <expr> <Down>    pumvisible()?‘\<C-n>‘:‘\<Down>‘
inoremap <expr> <Up>    pumvisible()?‘\<C-p>‘:‘\<Up>‘
inoremap <expr> <PageDown>    pumvisible()?‘\<PageDown>\<C-p>\<C-n>‘:‘\<PageDown>‘
inoremap <expr> <PageUp>    pumvisible()?‘\<PageUp>\<C-p>\<C-n>‘:‘\<PageUp>‘

" NERDTree config
map <F2> :NERDTreeToggle<CR>
autocmd vimenter * NERDTree
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif

" This command is to open NERDTree automatically when vim starts up on opening
" a directory.
autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists("s:std_in") | exe ‘NERDTree‘ argv()[0] | wincmd p | ene | endif 

" This command is to close vim if the only window left open is a NERDTree.
autocmd bufenter * if(winnr("$")==1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
let g:NERDTreeDirArrowExpandable = ‘~‘
let g:NERDTreeDirArrowCollapsible = ‘~‘

" UltiSnips - Trigger configuration. Do not use <tab> if you use https://github.com/Valloric/YouCompleteMe.
let g:UltiSnipsExpandTrigger="<c-j>"
let g:UltiSnipsListSnippets="<c-h>"
let g:UltiSnipsJumpForwardTrigger="<c-j>"
let g:UltiSnipsJumpBackwardTrigger="<c-k>"
let g:UltiSnipsSnippetDirectories=[‘/home/cv/.vim/bundle/ultisnips/mysnippets/‘]

" If you want :UltiSnipsEdit to split your window.
let g:UltiSnipsEditSplit="vertical"

.vimrc

2. 然后安装各种插件

有些插件需要先去 GitHub 上克隆到本地。

打开 vim ，在命令模式下键入下面的插件安装指令，等待完成。

cv@cv: ~$ vim

:PluginInstall

3. 试验一下效果

再次打开 vim ，结果最下面有提示

the ycmd server SHUT DOWN (restart with ‘:YcmRestartServer‘). Unexpected error while ...M core library. Type ‘:YcmToggleLogs ycmd_41013_stderr_cys4wh16.log‘ to check the logs.

根据提示键入 :YcmToggleLogs ycmd_41013_stderr_cys4wh16.log 

# /tmp/ycmd_41013_stderr_cys4wh16.log
Traceback (most recent call last):
  File "/home/cv/.vim/bundle/YouCompleteMe/third_party/ycmd/ycmd/utils.py", line 637, in ImportAndCheckCore
    ycm_core = ImportCore()
  File "/home/cv/.vim/bundle/YouCompleteMe/third_party/ycmd/ycmd/utils.py", line 628, in ImportCore
    import ycm_core as ycm_core
ImportError: /home/cv/.vim/bundle/YouCompleteMe/third_party/ycmd/ycm_core.so: undefined symbol: clang_getCompletionFixIt

原来是 clang_getCompletionFixIt 未定义，怎么办呢？

Valloric/YouCompleteMe主页查看了一下，找到了一些线索