, I made those changes and the errors I have listed were solved but now I have some other errors. I’ve tried to recreate the project with your source code to remove them, but they still remain. CompilerResultsLog: Error: D:\UE4\Projects\Tanks\Source\Tanks\TanksGameMode.cpp(1) : error: Expected TanksGameMode.h to be first header included. CompilerResultsLog: Error: D:\UE4\Projects\Tanks\Source\Tanks\TankStatics.cpp(1) : error: Expected TankStatics.h to be first header included. CompilerResultsLog: Error: D:\UE4\Projects\Tanks\Source\Tanks\Turret.cpp(1) : error: Expected Turret.h to be first header included. So I changed these lines to reflect the order required. I’m currently investigating the errors that followed, as they may be a result from some setting or lack of.