How to fix the Oracle error RMAN-07521: cannot create recovery catalog in database version string; version string required?

In this post, you’ll learn more about the Oracle ErrorRMAN-07521: cannot create recovery catalog in database version string; version string required with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-07521: cannot create recovery catalog in database version string; version string required

Reason for the Error RMAN-07521: cannot create recovery catalog in database version string; version string required

An attempt was made to use a version of the recovery catalog schema that was incompatible with the version of the database.

How to fix the Error RMAN-07521: cannot create recovery catalog in database version string; version string required ?

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

Upgrade the catalog database to at least the required version or install the catalog schema in a different database which is of at least the required version.