Background: I am new to Cadence, and am going through a simple tutorial on how to create a 555 LED blinker circuit using the Cadence suite. Following the tutorial, I drew the schematic in OrCAD, created a few custom pads and footprints, placed the components in Allegro, and autorouted the board.
Everything went smoothly until it came time to export the gerbers/artwork. The signal, silkscreen, and soldermask films export fine, but the power and ground films both have the error
Padstacks missing thermal/antipad definitions: throughhole_padstack, pad60cir36
I created the throughhole_padstack, but I do not recall using or assigning pad60cir36 ever in the tutorial. If anybody knows of an obvious/common fix, I appreciate the help!
Thanks for the help steve. I believe I ended up solving the problem by changing the Device type from 6x00 to Gerber RS274X under the Artwork Control Form. After that, the Gerbers were created without errors. I am pretty sure that the thermal pads were already defined (they were specified as flash), so I still don't understand why there was a problem exporting as a 6x00 format. I won't worry about that right now, though.
Anyway, thanks again for the help! I really appreciate it.