Oracle® Database 11g / 12c / 18c error codes ORA-12212: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA

ORA-12212: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA

Oracle Error Code: ORA-12212

Cause: The PREFERRED_CMANAGERS binding in the client''s TNSNAV.ORA file does not have a CMANAGER_NAME specified.

Action: Define the CMANAGER_NAME as part of the PREFERRED_CMANAGERS binding. Use of the Oracle Network Manager should eliminate this error.