Warning: Internal error, please report: Dereferencing a non-pointer.
Can anyone share some insight?
The first thing I noticed is; You’re inputting a string (element.name) into element. The set node needs this to be an element.
Ok John, thanks. I knew something wasn’t connecting correctly. Can you suggest where I might go from here…
Hmm. I’d have to see more of the errors. Do you have output on the all elements of category node?
First - it appears that there is likely no output (no wall elements) coming out of the “All Elements Of Category” node at the beginning since the GetParameterValueByName node shows no output (null). That’s where the problems are starting. At the “SetParameterByName” node, the first input should be revit elements, not strings (text).
It might be helpful if you explained what you are trying to accomplish with this entire script.