What could cause a "use of undefined type error" when setting up locomotion for a VR character?

Development Programming & Scripting C++
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1

I’m trying to add smooth locomotion to the VR Expansion plugin in c++.

when I add the below line I get the error:

code:
AddMovementInput(LeftMotionController->GetForwardVector(), Val);

error:
C2027: use of undefined type ‘UGripMotionControllerComponent’

from googling it seems like maybe it’s related to includes. I’ve tried adding #include “MotionControllerComponent.h” to the .cpp and .h files. Any ideas appreciated.

LeftMotionController is defined in the grandparent class which I’ve also tried including.

If I create a blueprint copy of the c++ class I can see the components including LeftMotionController (as well as something called VRProxy.

Thanks!

2

In case anyone comes across this in the future, the fix was to add the below line to the .cpp file:

#include “GripMotionControllerComponent.h”