cmake报错，不太懂哪里出问题了

Question

cmake报错，不太懂哪里出问题了，是vs2017，麻烦各位帮忙

The C compiler identification is unknown
The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:14 (project):
No CMAKE_C_COMPILER could be found.

CMake Error at CMakeLists.txt:14 (project):
No CMAKE_CXX_COMPILER could be found.

Configuring incomplete, errors occurred!
See also "D:/VTK/VTK-8.1.0.rc1-bin/CMakeFiles/CMakeOutput.log".
See also "D:/VTK/VTK-8.1.0.rc1-bin/CMakeFiles/CMakeError.log".

Answer 1

找不到编译器，这个时候需要手动添加。点击 +Add Entry在这个地方添加环境变量。把name写好，Type选择FILEPATH并且Value自己选择相应的编译器中vc\bin目录下的cl.exe即可。这里要添加的两个环境变量的名字分别是CMAKE_C_COMPILER和CMAKE_CXX_COMPILER，即就是C的编译器和C++的编译器。添加完即可