Type of a DBA question urgent

hello,

   i tried to execute the following command and i got the foll    error can anybody help me immediately.

 create controlfile

     2> set database default
     3> logfile group 1('logfile1a','logfile1b') size 250k,
     4> group 2('logfile2a','logfile2b') size 250k
     5> datafile 'test_system1' size 250k
     6> resetlogs;

create controlfile
*
ORA-01503: CREATE CONTROLFILE failed
ORA-01169: DATAFILE number 1 not found. Must be present

   I am not able to trace the error exactly can anybody help me to    solve it.

   Thanks in advance.

from
satish :satishn_at_blr.sni.de Received on Wed Dec 03 1997 - 00:00:00 CST