Oracle Message RMAN-06426 - RECOVERY_CATALOG_OWNER role must be granted to user string

ERRORRECOVERY_CATALOG_OWNER role must be granted to user string
CAUSEThe CREATE CATALOG or UPGRADE CATALOG command was used, but the USERID that was supplied in the CATALOG connect string does not have the RECOVERY_CATALOG_OWNER role granted as a DEFAULT role.
ACTIONGrant the RECOVERY_CATALOG_OWNER role to the recovery catalog owner.