Ora-39126 | Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71 [upd]

If the Data Pump internal packages (like KUPW$WORKER ) or the database catalog are invalid or out of sync, workers will fail.

This specific error is frequently linked to metadata inconsistencies or environment-specific bugs: If the Data Pump internal packages (like KUPW$WORKER

-- For Container Databases (CDB), ensure all PDBs are open first ALTER PLUGGABLE DATABASE ALL OPEN; -- Run the script from the rdbms/admin directory @?/rdbms/admin/dpload.sql Use code with caution. If the Data Pump internal packages (like KUPW$WORKER

Stale or corrupt optimizer statistics in the source dump file can cause the worker to crash during the preparation phase. If the Data Pump internal packages (like KUPW$WORKER