Enterprise manager configuration error: error instantiating OC4J Files

Question

Good day to all.
Its my first time to install Oracle 11g on my Windows 7 computer.
After i installed and configured the database, i get this following error , so i can't go through the Enterprise Manager.
Enterprise Manager Configuration failed due to the following error - Error instantiating OC4J Configuration files
So i checked the emConfig.log for error details, and i found out that i have some several files missing, in which i checked the folder also.
I don't know why these files are missing.
Jun 5, 2012 4:32:53 PM oracle.sysman.emcp.util.PortManager findUsedPortsFromXML
CONFIG: Could not find or correctly parse file C:\app\ROMMEL\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole\config\jms.xml in searching for tag jms-server with attribute port
java.io.FileNotFoundException: C:\app\ROMMEL\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole\config\jms.xml (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
     at java.io.FileInputStream.<init>(FileInputStream.java:106)
     at java.io.FileInputStream.<init>(FileInputStream.java:66)
     at java.io.FileReader.<init>(FileReader.java:41)
     at oracle.sysman.emcp.util.PortManager.findUsedPortsFromXML(PortManager.java:296)
     at oracle.sysman.emcp.util.PortManager.markAllUsedPorts(PortManager.java:1297)
Jun 5, 2012 4:32:53 PM oracle.sysman.emcp.util.PortManager findUsedPortsFromXML
CONFIG: Could not find or correctly parse file C:\app\ROMMEL\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole\config\rmi.xml in searching for tag rmi-server with attribute port
java.io.FileNotFoundException: C:\app\ROMMEL\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole\config\rmi.xml (The system cannot find the file specified)
     at java.io.FileInputStream.open(Native Method)
     at java.io.FileInputStream.<init>(FileInputStream.java:106)
Jun 5, 2012 4:32:53 PM oracle.sysman.emcp.util.PortManager findUsedPortsFromXML
CONFIG: Could not find or correctly parse file C:\app\ROMMEL\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole\config\http-web-site.xml in searching for tag web-site with attribute port
java.io.FileNotFoundException: C:\app\ROMMEL\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole\config\http-web-site.xml (The system cannot find the file specified)
     at java.io.FileInputStream.open(Native Method)
Jun 5, 2012 4:33:57 PM oracle.sysman.emcp.util.FileUtil setAttributeInXML
CONFIG: Stack Trace:
java.io.FileNotFoundException: C:\app\ROMMEL\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole\config\server.xml (The system cannot find the file specified)
     at java.io.FileInputStream.open(Native Method)
Jun 5, 2012 4:33:57 PM oracle.sysman.emcp.EMDBCConfig instantiateOC4JConfigFiles
CONFIG: Failed to set value in server.xml for application-server tag
Jun 5, 2012 4:33:57 PM oracle.sysman.emcp.EMConfig perform
SEVERE: Error instantiating OC4J configuration files
Refer to the log file at C:\app\ROMMEL\cfgtoollogs\dbca\RommelDB\emConfig.log for more details.
Jun 5, 2012 4:33:57 PM oracle.sysman.emcp.EMConfig perform
CONFIG: Stack Trace:
oracle.sysman.emcp.exception.EMConfigException: Error instantiating OC4J configuration files
     at oracle.sysman.emcp.EMDBCConfig.performConfiguration(EMDBCConfig.java:427)
     at oracle.sysman.emcp.EMDBCConfig.invoke(EMDBCConfig.java:174)
IT seems that the folder OC4J_DBConsole\config\ does not contain any xml files.!
Prior to this, i get some files that are not found error when running the SETUP, there are several of them, i just pressed CONTINUE in
order to finish the installation.
Hope anyone can give me a good advice and help so that i can start to run Enterprise Manager and to learn how to get around with database creation and configuration
Im a total newbie in Oracle, so any help would be greatly appreciated.
Thank you very much.

Answer 1

Hello.
I have successfully installed Microsoft Loopback adapter.
I checked out the installation logs in the Logs directory, i can the error log (oraInstall2012-06-05_12-36-49PM.err) . which contains many errors:
java.io.FileNotFoundException: C:\Users\ROMMEL\AppData\Local\Temp\Temp1_win64_11gR2_database_1of2.zip\database\stage\Components\oracle.ctx\11.2.0.1.0\1\DataFiles\filegroup12.jar (The system cannot find the path specified)
     at java.io.FileInputStream.open(Native Method)
java.io.FileNotFoundException: C:\Users\ROMMEL\AppData\Local\Temp\Temp1_win64_11gR2_database_1of2.zip\database\stage\Components\oracle.ctx\11.2.0.1.0\1\DataFiles\filegroup12.jar (The system cannot find the path specified)
     at java.io.FileInputStream.open(Native Method)
java.io.FileNotFoundException: C:\Users\ROMMEL\AppData\Local\Temp\Temp1_win64_11gR2_database_1of2.zip\database\stage\Components\oracle.ctx\11.2.0.1.0\1\DataFiles\filegroup5.jar (The system cannot find the path specified)
java.io.FileNotFoundException: C:\Users\ROMMEL\AppData\Local\Temp\Temp1_win64_11gR2_database_1of2.zip\database\stage\Components\oracle.ctx\11.2.0.1.0\1\DataFiles\filegroup5.jar (The system cannot find the path specified)
java.io.FileNotFoundException: C:\Users\ROMMEL\AppData\Local\Temp\Temp1_win64_11gR2_database_1of2.zip\database\stage\Components\oracle.ctx\11.2.0.1.0\1\DataFiles\filegroup19.jar (The system cannot find the path specified)
AND lots of .jar and .rsf files missing.
What should i do next?
Thank you.