Message
The database contains more than one occurrence of the Reference Root class.
Severity
High
Detailed Description
More than one occurrence of the reference root exists in the model database. An occurrence of the reference root class exists at the top of a single 3D reference hierarchy and having more than one in a model database is a critical corruption of the database.
Possible Cause
This is an unexpected error with no known cause.
Possible Impacts
The hierarchy of 3D References will not be displayed correctly in the references tab of the Workspace Explorer.
What You Should Do
A repair command is provided to correct this problem.
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Open the model.
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Click Tools > Custom Commands.
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Run the Clean Database custom command
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On the Clean Database dialog box, select the object displayed with the message identified above.
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Click Clean Now.
This operation removes all but one of the reference root class occurrences, after moving all the related children object into the hierarchy under the single remaining reference root occurrence.
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Close the Clean Database dialog box.
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Save and Exit the session.