bress88:
The
WallholeCut.gsm is a macro, so it could be called by any number of library parts (but based on the name probably a Door or Window). You will need to isolate the problematic part(s), then try to discover which parameter is leading to the error. To isolate the problematic part, try using the heavy Marquee to reduce the model by halves until you have found the part, then try changing its parameters to see which one is generating the error.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David
