when I run my dynamo, an error is showed as “Warning: Internal error, please report: Dereferencing a non-pointer”
I ask for the possible issues for this problem and how I can solve it.
Can you share a screenshot of the script so we can see what is going wrong?
Whatever is coming out of the node (click where I have circled) is probably not an element.
Somewhere in that list you have a null or empty sublist. You need to find it a clear it out.
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Try changing the list level.
If that doesn’t work I’d try extracting a single list by using a code block and typing, i[0] then plugging that in and see if that node turns grey.
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The main problem was in my revit model, I deleted all unnecessary elements.
then my dynamo script works well.
thanks so much dears for your kind support