Deleting specific multiple shared parameters in multiple families at once

[GavinCrump]

Not familiar with family binding errors like this, but try the method at end of this thread maybe:

Delete unused shared parameters?

Hi, an example solution with Python (only for instance parameters project), using the HasValue property import sys import clr import System from System.Collections.Generic import List clr.AddReference('RevitAPI') import Autodesk from Autodesk.Revit.DB import * import Autodesk.Revit.DB as DB clr.AddReference('RevitServices') import RevitServices from RevitServices.Persistence import DocumentManager from RevitServices.Transactions import TransactionManager doc = DocumentManager.Instance.Curren…