Oracle Error ORA-01592: error converting Version 7 rollback segment (string) to Oracle 8 format

Oracle Error Message

ORA-01592: error converting Version 7 rollback segment (string) to Oracle 8 format

Reason for the Error

Look at the accompanying internal error; Version 7 database may not have shutdown cleanly.

Solution

Investigate the internal error; may have to reload the Version 7 database (from backup) and shutdown the database cleanly.