^CMake Error at FileSetWrongType\.cmake:[0-9]+ \(target_sources\):
  target_sources File set TYPE may only be one of the built-in types
  "HEADERS", "SOURCES", "CXX_MODULES" or a RULE visible from the current
  directory\.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)$
