How to fix the Oracle error TNS-12212: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA?

In this post, you’ll learn more about the Oracle ErrorTNS-12212: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

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

Reason for the Error TNS-12212: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA

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

How to fix the Error TNS-12212: TNS:incomplete PREFERRED_CMANAGERS binding in TNSNAV.ORA ?

You can fix this error in Oracle by following the below steps

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