Parameter.GetValue node failing

[SeanP]

May start here and see if you can work it to do what you want.

Open Families from a Directory, Purge a Category, Load and Save

The following graph will load a family from a directory, delete all unused Family and Family Types of a Category, then Save and/or Load the family into the current project. [Families%20-%20Open%20-%20Clean%20-%20Load%20Details%20Item%20Families%20from%20Directory] Here is the core code in the “Open Document & Clean” node: import System import clr clr.AddReference("RevitNodes") import Revit clr.AddReference('RevitAPI') from Autodesk.Revit.DB import * clr.AddReference('RevitServices') import R…