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

Problem:

When trying to Map Family/Part in the IFC Export dialog, the IFC Entities are missing. How to fix this problem?

             

Solution: 

The possible reason for this behavior is possibly you have removed the necessary file for the mapping utility to read the IFC entities from. 

1. Go to the desired Datase_xx/Part folder and look for the file IFC_Parts_si.xml. This file is responsible for the IFC entities. 
   
   
2. If somehow you have removed the file then try to repair the dataset or you can copy this file from any other installed dataset. Once the file is added in the correct Part folder, then restart OBD and open the Family/Part mapping in IFC export and you will be able to see IFC entities.