I did.
In MyGame.build.cs:
PublicDependencyModuleNames.Add(“Core”);
In the cpp file where I use them:
#include “Misc/AES.h”
Could you try to use them in your project and to see how it works, thanks a lot. If I can’t use it,then I need use third party library like CryptoPP, which I’m trying to use with in my game project.