During commands:
parts list will be listed by C3DRENESG and for that, it creates temporary parts of each partsize that is in the catalog.
If parts list was originally done with a different catalog one you are currently using, this error occurs because Civil 3D will not find the part that is in parts listto create the same within the design: It's like trying to insert a block that does not exist. And that will cause this error:
To resolve this error: