I had some issues with Revit 2025 and had to update to 2026 and now my simple dynamo doesn’t work. Get dereferencing point error. Pretty new to this and would appreciate any help!
er error.
Welcome to the Community!
Please zoom in on the script until the node headers are visible, then hit export as image. Currently, we cannot see what nodes you’re using. It may be that you have to update that package in Cyan to a version matching your 2026 client. It may be entirely unrelated. It’s difficult to tell without knowing what’s in the script.
Also, always include a separate screenshot or exact text of any warnings or errors you’re getting. They will often explain what the issue is or at least where to start looking.
How do you get a copy of the warnings? Everytime I move my mouse off of it. It closes.
Code block
“Internal error, please report: Dereferencing a non-pointer.”
Set Parameter by name warning
"Element.SetParameterByName operation failed.
The call is ambiguous between the following methods or properties: ‘Revit.Elements.InternalUtilities.ElementUtils.SetParameterValue(Autodesk.Revit.DB.Parameter, Revit.Elements.Element)’ and ‘Revit.Elements.InternalUtilities.ElementUtils.SetParameterValue(Autodesk.Revit.DB.Parameter, string)’
Screenshot always works (if you have something that can delay a screenshot). Current versions should also include a "Learn more" link that opens documentation in the Documentation Browser and the Graph Node Manager that contains all nodes and any errors they contain.
Standard warning flag
Graph Node Manager with copiable warnings
The error from SetParameterByName is likely due to the upstream error in your code block. If the code block is failing, then it won’t be passing a valid value to the downstream nodes. You need to identify and fix the issue with the code block first - probably an issue with the output from the previous node.