Message
An Assembly has itself as a parent in the AssemblyHierarchy.
Severity
Fatal.
Detailed Description
The assembly has itself as a parent in the AssemblyHierarchy. The assembly may not be visible on the Assembly tab of the Workspace Explorer.
Possible Cause
It was possible at one time to drag and drop an assembly on top of itself.
Possible Impacts
There is a potential for infinite loops. Due to relationship limitations, the assembly may disappear from the Assembly tab of the Workspace Explorer and will no longer have a direct or indirect relationship to the B0 block.
What You Should Do
A database integrity repair SQL script or COM tool has been provided to correct this problem.
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Open the model.
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Run the Clean Database custom command.
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Select the object in the list of objects.
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Click Clean Now to repair the object.