CMake Error at TRANSFORM-selector-FOR-wrong-argument.cmake:[0-9]+ \(file\):
  Error evaluating generator expression:

    \$<LIST:TRANSFORM,a;b;c,TOUPPER,FOR,0,1x,2>

  sub-command TRANSFORM, selector FOR expects, at least, two numeric values.
Call Stack \(most recent call first\):
  CMakeLists.txt:[0-9]+ \(include\)