Community
While working I will get a Dialogue Box " Attempted an unsupported opertion". Then I have to close Revit throught the Task Manager.
Do you have the latest service pack installed?
What are you trying to do?
LD
you can find it under help - in the upper right corner - the down arrow next the question mark - go to about. The image below will show you mine - with the update.
LD
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