尽管 .vimrc 已设置，但 YCM 在构建完成后仍无法工作。
我做了什么？
sudo apt-get install build-essential cmake
sudo apt-get install python-dev python3-dev
sudo apt-get install clang
cd ~/.vim/bundle/YouCompleteMe
git clone https://github.com/Valloric/YouCompleteMe.git
git submodule update --init --recursive
./install.py --clang-completer --system-libclang
cp third_party/ycmd/examples/.ycm_extra_conf.py ~
cd ..
cd..
cd..
vim .vimrc
这里我添加到.vimrc中：
let g:ycm_global_ycm_extra_conf = '~/.ycm_extra_conf.py
然后：
vim test.c
但是代码完整功能不起作用！
输出
vim --version：
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Nov 24 2016 16:44:48)
Included patches: 1-1689
Extra patches: 8.0.0056
Modified by [email protected]
Compiled by [email protected]
Huge version without GUI. Features included (+) or not (-):
+acl +farsi +mouse_netterm +tag_binary
+arabic +file_in_path +mouse_sgr +tag_old_static
+autocmd +find_in_path -mouse_sysmouse -tag_any_white
-balloon_eval +float +mouse_urxvt -tcl
-browse +folding +mouse_xterm +terminfo
++builtin_terms -footer +multi_byte +termresponse
+byte_offset +fork() +multi_lang +textobjects
+channel +gettext -mzscheme +timers
+cindent -hangul_input +netbeans_intg +title
-clientserver +iconv +packages -toolbar
-clipboard +insert_expand +path_extra +user_commands
+cmdline_compl +job -perl +vertsplit
+cmdline_hist +jumplist +persistent_undo +virtualedit
+cmdline_info +keymap +postscript +visual
+comments +langmap +printer +visualextra
+conceal +libcall +profile +viminfo
+cryptv +linebreak -python +vreplace
+cscope +lispindent +python3 +wildignore
+cursorbind +listcmds +quickfix +wildmenu
+cursorshape +localmap +reltime +windows
+dialog_con -lua +rightleft +writebackup
+diff +menu -ruby -X11
+digraphs +mksession +scrollbind -xfontset
-dnd +modify_fname +signs -xim
-ebcdic +mouse +smartindent -xsmp
+emacs_tags -mouseshape +startuptime -xterm_clipboard
+eval +mouse_dec +statusline -xterm_save
+ex_extra +mouse_gpm -sun_workshop -xpm
+extra_search -mouse_jsbterm +syntax
:YcmDebugInfo：
E492: Not an editor command: YcmDebugInfo
操作系统版本、发行版等：
Linux ubuntu 4.10.0-28-generic #32~16.04.2-Ubuntu SMP Thu Jul 20 10:19:48 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
安装命令：
./install.py --clang-completer --system-libclang
clang --version：
clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.0
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/6.0.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.0.0
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.0
Candidate multilib: .;@m64
Selected multilib: .;@m64
ycm构建日志：
Searching Python 2.7 libraries...
Found Python library: /usr/lib/python2.7/config-x86_64-linux-gnu/libpython2.7.so
Found Python headers folder: /usr/include/python2.7
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PythonLibs: /usr/lib/python2.7/config-x86_64-linux-gnu/libpython2.7.so (found suitable version "2.7.12", minimum required is "2.6")
Using libclang to provide semantic completion for C/C++/ObjC
Using external libclang: /usr/lib/x86_64-linux-gnu/libclang-3.8.so.1
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/ycm_build_uuTb3r
Scanning dependencies of target BoostParts
[ 1%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/python/src/errors.cpp.o
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[ 3%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/python/src/str.cpp.o
[ 5%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/python/src/object_protocol.cpp.o
[ 6%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/python/src/slice.cpp.o
[ 7%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/python/src/dict.cpp.o
[ 9%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/python/src/converter/from_python.cpp.o
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[ 36%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/regex/src/w32_regex_traits.cpp.o
[ 38%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/regex/src/wide_posix_api.cpp.o
[ 39%] Building CXX object BoostParts/CMakeFiles/BoostParts.dir/libs/regex/src/regex_raw_buffer.cpp.o
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[ 71%] Linking CXX static library libBoostParts.a
[ 71%] Built target BoostParts
Scanning dependencies of target ycm_core
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[ 98%] Building CXX object ycm/CMakeFiles/ycm_core.dir/PythonSupport.cpp.o
[100%] Linking CXX shared library /home/m/.vim/bundle/YouCompleteMe/third_party/ycmd/ycm_core.so
[100%] Built target ycm_core
当我完成 YCM 的编译，并配置 .vimrc 后，代码补全功能对 c 文件或 cpp 文件不起作用~~~
有人知道为什么吗？