Forum Post: RE: Calibre / PEX / During Calibre view creation / *Error* close: argument #1 should be an I/O port (type template = "p") - nil

Thanks! It turned out that parts of the PEX code we got from the foundry had inconsistent port names (i.e., some devices in the code had 'GND' ports while the other devices had 'VSS' ports). Cheers, Sunwoo