USplineMeshComponent undefined in VS2013?

Why is USplineMeshComponent seemingly missing? Do you need to include an extra library to use it?
(using visual studio 2013 update 4 and unreal engine 4.81 and 4.82)

I am not at home to test this, but have you tried including:
#include “Components/SplineMeshComponent.h”

yeah it was actually answered in another thread. I tried including that earlier but VS was giving me other errors. Visual Assist seems to be helping