add_subdirectory given source "MyApp1" which is not an existing directory

[KammutierSpule]

I got this error on CMake:

CMake Error at src/CMakeLists.txt:10 (add_subdirectory):
add_subdirectory given source "MyApp1" which is not an existing directory.

[KammutierSpule]

I manually renamed the src/sample to src/MyApp1 but not sure if it was ok.