Oracle Message ORA-39021 - Database compatibility version string is not supported.

ERROR	Database compatibility version string is not supported.
CAUSE	User selected COMPATIBLE as the version on an DBMS_DATAPUMP.OPEN API, but the current database compatibility version is not supported by the Data Pump API. Database versions before 9.2 are not supported by the Data Pump.
ACTION	Specify a supported version and recreate the job.