ORA-23425: invalid materialized view identifier

admin

ORA-23425: invalid materialized view identifier string
Cause: The argument providedto dbms_mview.purge_mview_from_log is an
invalid materialized view identifer or it does not identify an Oracle 8 fast
refreshable materialized view or the materialized view has been already purged.
Action: If the materializedview is an Oracle 8 fast refreshable materialized view
then provide purge_mview_from_log with its valid materialized view identifier.