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[dino9JUD7]

Hello, can somebody help me with this. 

I read previous solutions about this but nothing helps. 

I have updated my revit to the last version but I still have the same error while copy/mirror/array elements. 

It's not file-related, because my colleague can open it and copy without problem error issues. It's my revit 2023-related.. I have the same problem with copy/mirror in other revit-project files to. 

[barthbradley]

Let's see what it says under "Expand>>".  

[ToanDN]

Follow these steps to resolve the issue: 

1. Close all Revit Sessions on the affected machine. 
2. Rename the following file (instead of removing the folders listed in the solution below): C:\Users\%USERNAME%\AppData\Local\Autodesk\Revit\Autodesk Revit %VERSION%\DDGraph
3. Restart Revit. 

Alternatively: 
Copy and paste a healthy DDGraph file from another machine, where the issue is not reproducible.

If the above steps do not help, clear the content of the following folders:

• C:\Users\%USERNAME%\AppData\Roaming\Autodesk\Revit\Autodesk Revit %VERSION%
• C:\Users\%USERNAME%\AppData\Local\Autodesk\Revit\Autodesk Revit %VERSION%

%USERNAME% should be your windows login name.

%VERSION% should be your Revit version.

[PrathapSekar]

Hi @dino9JUD7 ,

Something helped? 

I had a similar issue with the earlier version and did the following,

• updated the Revit to latest version (URs & Hotfixes).
• Removed all add-ins and reinstalled them.
• in some cases Revit had to be reinstalled.

Thanks.