^CMake Error at defer_call_error.cmake:2 \(message\):
  Deferred Error
Call Stack \(most recent call first\):
  CMakeLists.txt:DEFERRED
+
CMake Error at defer_call_error/CMakeLists.txt:2 \(message\):
  Deferred Error from Subdirectory
Call Stack \(most recent call first\):
  CMakeLists.txt:DEFERRED$