Oracle Message ORA-24010 - QUEUE string does not exist

ERRORQUEUE string does not exist
CAUSEThe specified queue does not exist.
ACTIONSpecify a valid queue. Query USER_QUEUES for all the valid queues.

143163Additions Oracle migr./ upgrade to 8.0.5: UNIX
184133Additions Oracle migr./upgrade to 8.0.6: UNIX
830577Oracle Database 10g: ORA-21700 when upgrading to 10.1/10.2