During installation of SAP, i have encounter this
1.)
ERROR at line 1:
ORA-01503: CREATE CONTROLFILE failed
ORA-01565: error in identifying file
'%ORACLE_HOME%\DATABASE\DBS1%ORACLE_SID%.ORA'
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.