Product(s):	OpenBuildings Designer
	Version(s):	CONNECT Edition
	Area:	Import/Export
	Subarea:	IFC

Problem Description: 

I have a IFC_Mapping_overrides.ifc2x3.set file and I want to upgrade/change it to work in IFC4, but I get an error that the “DataGroup property ObjectFireResistance/@Fire | Rating not found”. How to deal with this?

Steps to Resolve

Open the IFC_Mapping_overrides.ifc2x3.set file and check its name.

Open the ObjectFireResistance.xsd file and compare the naming of the same attribute.

The part after @ in the set file should be changed to the Name attribute from the xsd file. Therefore, change the name in the set file to:

and Save settings.