Cam mates and motion help

[jordanbull]

I have been trying to mate a camshaft with 4 lobes on it to 4 rocker arms, the advanced cam mate keeps saying the selected faces do not form a closed and continuous cam extruded from a single profile. I have also tryed using cosmos motion by doing 3d contacts but not having any luck. Also trying to mate the other end of the rocker to the valve stem isnt happening either, surely this is possible???