I\'m finding a strange issue with Qt Creator 3.0.1 that is not refreshing the current state of the configuration before compiling and linking. To explain myself better, say
Unfortunately, this is a known issue that sometimes QtCreator does not rerun qmake and you need to rerun qmake explicitly. There is an option in QtCreator to run qmake. There is no need to delete anything in the background, however.
This is a long standing issue still not fixed and it was one of the first reported issues:
Creator should know when to rerun qmake