Not sure where this issue should be addressed: QtCreator 4.13.0 or Qt 5.15.0.

With Qt Creator 4.13.0, when building any Android qmake project 'Generals Messages window fills with:

C:/Qt/5.15.0/android/mkspecs/features/android/android_deployment_settings.prf(78): contains(): Encountered invalid regular expression '.*\qmake_qmake_immediate.qrc$'.
C:/Qt/5.15.0/android/mkspecs/features/android/android_deployment_settings.prf(78): contains(): Encountered invalid regular expression '.*\qmake_qmake_immediate.qrc$'.
C:/Qt/5.15.0/android/mkspecs/features/android/android_deployment_settings.prf(78): contains(): Encountered invalid regular expression '.*\qmake_qmake_immediate.qrc$'.

Its annoying cause during build Qt Creator switches from 'Compile output' pane to 'General Messages'.