No part definition could be retrieved. The required part definition has been removed from the catalog since this item’s placement in the model.... - Intergraph Smart 3D - Help - Hexagon

Intergraph Smart 3Dx Help

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English
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Intergraph Smart 3D
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3Dx
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Smart 3D Version
13.1

Meaning: The catalog part has been deleted but the relationship collection was not updated and no the part was not returned.

Recovery: Run the Tools > Synchronize Model with Catalog command in Project Management.