Error: Could not generate unknown file: Attempt to reopen a file for path \app\build\generated\source\kapt\debug\

	As I just wasted time watching a Youtube video, I need to keep it short: This sucks

 error: Could not generate unknown file: Attempt to reopen a file for path C:\Users\app\app\build\generated\source\kapt\debug\de\injection\AppModule_ProvideAndroidStudioShowStopperFactory.java.