Oracle® Database 11g / 12c / 18c error codes ORA-12207: TNS:unable to perform navigation

ORA-12207: TNS:unable to perform navigation

Oracle Error Code: ORA-12207

Cause: Improperly configured navigation file TNSNAV.ORA.

Action: Check the syntax of the TNSNAV.ORA file on the application`s machine, and verify that it lists the correct communities.