error while trying to recover database with rman

I restored the full database with RMAN using control file and Now I am trying to recover it and getting the following error.RMAN-06094: datafile 1 must be restored

Datafile has been already restored.

I renamed the the file#1 and restored it again, but still I am getting the same error.

I am using the below commands to restore and recover the database.
restore DATABASE until time = "TO_DATE('10/02/2012 22:59:00','MM/DD/YYYY HH24:MI:SS')";
recover DATABASE until time = "TO_DATE('10/02/2012 22:59:00','MM/DD/YYYY HH24:MI:SS')";

Please help me on it.