ERROR: No commands were logged to the build logs . Your build system may not be compatible.

[MaikKlein]

CppTest  python2 ~/.vim/bundle/YCM-Generator/config_gen.py ~/CppTest --verbose
Running cmake in '/tmp/tmpMaTYE9'...
$ cmake /home/maik/CppTest
-- The C compiler identification is Clang 3.7.0
-- The CXX compiler identification is Clang 3.7.0
-- Check for working C compiler: /home/maik/.vim/bundle/YCM-Generator/fake-toolchain/Unix/clang
-- Check for working C compiler: /home/maik/.vim/bundle/YCM-Generator/fake-toolchain/Unix/clang -- 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: /home/maik/.vim/bundle/YCM-Generator/fake-toolchain/Unix/clang++
-- Check for working CXX compiler: /home/maik/.vim/bundle/YCM-Generator/fake-toolchain/Unix/clang++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/tmpMaTYE9

Running make...
$ make -i -j4
Scanning dependencies of target CppTest
[ 50%] Building CXX object CMakeFiles/CppTest.dir/main.cpp.o
[100%] Linking CXX executable CppTest
[100%] Built target CppTest

Cleaning up...

Build completed in 6.1 sec

Collected 0 relevant entries for C compilation (0 discarded).
Collected 0 relevant entries for C++ compilation (0 discarded).
()
ERROR: No commands were logged to the build logs (C: /tmp/tmphWWHFL, C++: /tmp/tmpdBfH6z).
Your build system may not be compatible.

project(CppTest)
cmake_minimum_required(VERSION 2.8)
aux_source_directory(. SRC_LIST)
add_executable(${PROJECT_NAME} ${SRC_LIST})
SET (CMAKE_CXX_COMPILER             "/usr/bin/clang++")
SET (CMAKE_CXX_FLAGS                "-std=c++1z")
INCLUDE_DIRECTORIES(libs)

➜  CppTest  ls
CMakeLists.txt  CMakeLists.txt.user  libs  main.cpp

[rdnetto]

It looks like you're hardcoding the path to your C++ compiler. This is very non-portable, which is why it breaks YCM-Gen (which works by supplying its own compiler). Remove that line and it should work without problems. If you do need to use a specific C++ compiler, you should be passing that to cmake instead of hardcoding it.