rman duplicate command giving error

Hello,

Please refer to below command which is giving error:

run

{

allocate channel t1 type 'sbt_tape' parms 'ENV=(TDPO_OPTFILE=/prodfinsys_01/app/oracle/admin/rmancfg/tdpo.opt)';

allocate channel t2 type 'sbt_tape' parms 'ENV=(TDPO_OPTFILE=/prodfinsys_01/app/oracle/admin/rmancfg/tdpo.opt)';

set until time "to_date( '19-01-2014 00:00', 'DD-MM-RRRR HH24:MI')";

DUPLICATE TARGET database to rman1 tablespace system,sysaux,mck_data

undo tablespace undotbs1

db_file_name_convert='/oradata_01/database/obiprd/','/oradata_01/database/rman1'

set log_file_name_convert='/oradata_01/database/obiprd/','/oradata_01/database/rman1';