Revit 2020, Dynamo 2.3.2.
I am trying to add a family parameter to a titleblock family.
My node network:
The python scripting that is troubling me:
I would like to understand what is causing this line to generate the warning " File “”, line 54, in
Exception: The document is currently modifiable! Close the transaction before calling EditFamily." whether it occurs before “TransactionManager.Instance.TransactionTaskDone()” or after.