ORA-16438: Switchover to primary cannot be executed at this time

admin

ORA-16438: Switchover to primary cannot be executed at this time
13-205
Cause: ALTER DATABASE COMMITTO SWITCHOVER TO PRIMARY could not
be executed because an incompatible operation such as RMAN restore or
flashback was in progress. See the database alert log for details.
Action: Wait for theincompatible operation to complete. The files that have been
flashed back or restored need recovery before you can reissue ALTER DATABASE
COMMIT TO SWITCHOVER TO PRIMARY statement. Start redo apply and verify
that the SWITCHOVER_STATUS column of the V$DATABASE view reports TO_
PRIMARY or SESSIONS_ACTIVE before retrying ALTER DATABASE COMMIT
TO SWITCHOVER TO PRIMARY.