Cannot create doors

[s556263]

Any time I click on a door, it says this. Can anyone help?

[barthbradley]

Showing a screenshot of an error dialog box does not provide enough information to help us to help you troubleshoot.  

[barthbradley]

What does it say under "Expand>>"?  

[ToanDN · Accepted solution]

Follow these steps to resolve the issue:

Close all Revit Sessions on the affected machine.
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
Restart Revit.



%USERNAME% should be your windows login name.

%VERSION% should be your Revit version.