Oracle® Database 11g / 12c / 18c error codes EXP-00003: no storage definition found for segment(number, number)

EXP-00003: no storage definition found for segment(number, number)

Oracle Error Code: EXP-00003

Cause: Export could not find the storage definitions for a cluster, index, or table.

Action: Record the accompanying messages and report this as an Export internal error to customer support.