oracle error - ORA-00283: recovery session canceled due to errors

ORA-00283:	recovery session canceled due to errors
Cause:	An error during recovery was determined to be fatal enough to end the current recovery session.
Action:	More specific messages will accompany this message. Refer to the other messages for the appropriate action.

oracle error - ORA-00282: UPI string call not supported, use ALTER DATABASE RECOVER

ORA-00282:	UPI string call not supported, use ALTER DATABASE RECOVER
Cause:	The given UPI call is no longer supported.
Action:	Use the ALTER DATABASE RECOVER command for all recovery actions.

ORA-00281:	media recovery may not be performed using dispatcher
Cause:	An attempt was made to use a dispatcher process for media recovery. Memory requirements disallow this recovery method.
Action:	Connect to the instance via a dedicated server process to perform media recovery.