Cannot install ORACLE OEM TOOL- Not able to run OEM after Oracle 10G install;SEVERE: Error instantiating EM conf

Problem Description:
Linux ES 4.0
Oracle 10G Production edition

Oracle database up and running, able to SQL. Not able to bring up EM console via port 1158 or
5500; Executed emctl status and emctl Start. Also ran DBCA to configure the
database. Please give me a call.

Error Log;
CONFIG: Failed to deploy state dirs
Jul 21, 2009 4:09:50 PM oracle.sysman.emcp.EMConfig perform
SEVERE: Error instantiating EM configuration files
Refer to the log file at /cm4/oracle/cfgtoollogs/dbca/put8/emConfig.log for more
details.
Jul 21, 2009 4:09:50 PM oracle.sysman.emcp.EMConfig perform
CONFIG: Stack Trace:
oracle.sysman.emcp.exception.EMConfigException: Error instantiating EM configura
tion files

I have Deleted DB Control Configuration Files and Repository Objects using EMCA using
emca -deconfig dbcontrol db -repos drop
but when i am trying to create the same using
emca -config dbcontrol db -repos create

Also tried + To delete the dbconsole :- Drop the repository users -

drop user sysman cascade;
drop user mgmt_view cascade;

- Drop the role mgmt_user :

drop role mgmt_user;

- Drop all public synonyms on repository objects -
You can create a sql script to generate the drop statements and then
execute the script
created -

set ver 0
set echo off
set pages 999
set feed 0
set heading off
Spool del_public_synonym_mgmt.sql
Select 'Drop public synonym ' || synonym_name || ';'
from dba_synonyms
where synonym_name like 'MGMT%' OR
synonym_name like 'SMP_EMD%' OR
synonym_name like 'SMP_MGMT%' OR
synonym_name in ('SETEMVIEWUSERCONTEXT' ,'DBMS_SHARED_POOL','EMD_MNTR'
,'ECM_UTIL') ;

SQL> spool off

Then execute the script del_public_synonym_mgmt.sql

Also tried;
ACTION PLAN
============
1.- remove the following directories from your filesystem:
<ORACLE_HOME>/<hostname_sid>
<ORACLE_HOME>/oc4j/j2ee/OC4J_DBConsole_<hostname>_<sid>

Note: On Windows you aslo need to delete the DB Console service:
- run regedit
- navigate to HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services
- locate the OracleDBConsole<sid> entry and delete it

OR you can delete the service as per following command
1. Run the command:
'sc delete <service_name>'
- where <service_name> is the DB Control service name (typically: OracleDBConsole<sid>)

B) To delete the repository

Logon SQLPLUS as user SYS or SYSTEM, and drop the sysman account and mangement objects:


* SHUTDOWN IMMEDIATE;
* STARTUP RESTRICT;
* EXEC sysman.emd_maintenance.remove_em_dbms_jobs;
* EXEC sysman.setEMUserContext('',5);
* REVOKE dba FROM sysman;
* DECLARE
CURSOR c1 IS
SELECT owner, synonym_name name
FROM dba_synonyms
WHERE table_owner = 'SYSMAN'
;
BEGIN
FOR r1 IN c1 LOOP
IF r1.owner = 'PUBLIC' THEN
EXECUTE IMMEDIATE 'DROP PUBLIC SYNONYM '||r1.name;
ELSE
EXECUTE IMMEDIATE 'DROP SYNONYM '||r1.owner||'.'||r1.name;
END IF;
END LOOP;
END;
* DROP USER mgmt_view CASCADE;
* DROP ROLE mgmt_user;
* DROP USER sysman CASCADE;
* ALTER SYSTEM DISABLE RESTRICTED SESSION;

Note: The above will completely delete the DB Control repository from the database; under cert
ain circumstances (e.g. you

want to recreate the repository later on) the following statemnts may be sufficient to remove the repository:

a. drop user sysman cascade;
b. drop role MGMT_USER;
c. drop user MGMT_VIEW cascade;
d. drop public synonym MGMT_TARGET_BLACKOUTS;
e. drop public synonym SETEMVIEWUSERCONTEXT;
ACTION PLAN
============
Please perform following and check if the issue is resolved.

1. Open the file $ORACLE_HOME/sysman/config/emd.properties.emca
2. Check if that file contains the correct ORACLE_HOME path and replace the wrong path.
3. Re--install the DBConsole.
3.1 Remove the existing configuration if needed: emca -deconfig dbcontrol db -repos drop
3.2 Re-config DBConsole: emca -config dbcontrol db -repos create

Same error message Aug 5, 2009 4:13:09 PM oracle.sysman.emcp.EMConfig perform
SEVERE: Error instantiating EM configuration files