Oracle® Database 11g / 12c / 18c error codes ORA-12215: TNS:poorly formed PREFERRED_NAVIGATORS Addresses in TNSNAV.ORA

ORA-12215: TNS:poorly formed PREFERRED_NAVIGATORS Addresses in TNSNAV.ORA

Oracle Error Code: ORA-12215

Cause: Address binding for PREFERRED_NAVIGATORS entry is improperly entered. entry.

Action: Check your PREFERRED_NAVIGATORS entry and fix it in TNSNAV.ORA