Why is there an error when installing opencv under Qt using CMake?

Question

Qt

In CMake I'm trying to generate an assembly for opencv. The configuration was successful, but when you click Generate, the following error appears:
CMake Error in modules/highgui/CMakeLists.txt:
No known features for CXX compiler
""
version .
Do I need to somehow edit CMakeLists.txt or is it due to the fact that I need to add some directory to the Path?