A question about the format of paths of included files

If I wanted to include a file like CoreMinimal.h, or Actor.h, etc, in one of the header files (or cpp) of my game project, then what is the best way to type the path of the needed inclusion?

I have just rebuilt the engine and trying to rebuild the game project, and inclusions like include “CoreMinimal.h” are suddenly causing a compilation error because the files cannot be found.