Well I tried again in the trial (I can't save files) after it crashed.. I can get it to work with no porch in front of the shed, but I can't get it to work with a small porch in front of the shed.
I have specified both the right hand wall and railing to be hip roof, 3"/12" first roof pitch, 6"/12" second roof pitch (which is roof pitch for the rest of the building), and 168" in from baseline (which I only got by guessing but it seems to work on the plan with no porch. The front and back walls/railings are designated as gable. Wall between the carport and shed, and the far left carport wall are designated hip in the roof specs. Please see the attached pictures. I really appreciate your help.