^CMake Error at CMP0115\.cmake:[0-9]+ \(add_executable\):
  Cannot find source file:

    main
Call Stack \(most recent call first\):
  CMP0115-NEW\.cmake:[0-9]+ \(include\)
  CMakeLists\.txt:[0-9]+ \(include\)


CMake Error at CMP0115\.cmake:[0-9]+ \(add_executable\):
  No SOURCES given to target: exe
Call Stack \(most recent call first\):
  CMP0115-NEW\.cmake:[0-9]+ \(include\)
  CMakeLists\.txt:[0-9]+ \(include\)


CMake Generate step failed\.  Build files cannot be regenerated correctly\.$