WheeledVehicle.h not found

Hi,
I have a pawn which I try to ‘convert’ to a car pawn. I created it in the unreal engine by creating class → pawn.
Now I changed a few lines because I want a vehicle not a player pawn.

class PROJECTFROMCLEAN_API AMy_Car_Pawn : public APawn

to

class PROJECTFROMCLEAN_API AMy_Car_Pawn : public AWheeledVehicle

Also I included WheeledVehicle.h.

But now the compiler can not file the header. How to include it then? Or do I have to use a different c++ class template?

So actually I think I’m missing the physxvehicle reference. but yet i did not find where to set it