I have a graph where it gets all the workset names from certain element parameters. Then it finds all the names that are incorrect and change to a correct version by using Element.SetParameterByName.
I have a same graph for ‘Grid’ parameters but for some reason, this graph for ‘Reference Plane / Scope box’ is not working with this error.
Without seeing what elements you’re trying to change it’s hard to say. You likely have references, grouped elements, or something else that would make the individual element read-only.