Does anyone have experience solving a transformation error regarding a polar array of a pad object?

I can successfully sketch a beam on a datum plane that I wish to polar array to create multiple beams in a curved array. My sketch is fully constrained and successfully uses the pad function to create the original beam. However when I try to use the polar array function on the pad object, I am getting the following message ".. transformed shapes do not intersect support". Can anyone provide assistance as to the cause of my error and how to go about rectifying the error?