CMake does not find Visual C++ compiler

After installing Visual Studio 2015 and running CMake on a previous project, CMake errors stating that it could not find the C compiler. The C compiler identification is unknown The CXX compiler identification is unknown CMake Error at CMakeLists.txt:4 (PROJECT): No CMAKE_C_COMPILER could be found. CMake Error at CMakeLists.txt:4 (PROJECT): No CMAKE_CXX_COMPILER could be found. I went searching fo