AdminConsole throws 404

On one of the developer's RAD 7.5.5.1 box, WTE 7.0.0.21 admin console thows 404 when accessed.
http://localhost:admin_port/ibm/console is the standard URL.
*[11/6/12 12:53:57:159 CST] 00000012 webcontainer  E com.ibm.ws.webcontainer.WebContainer handleRequest SRVE0255E: A WebGroup/Virtual Host to handle /ibm/console/login.do has not been defined.*
This is the error message what it shows in the SystemOut.log.

AdminConsole is a systemApp that comes with the installation. There few commands using which one can remove the console and reinstall the app and even restore the app.
Solution :
1. Remove the AdminConsole application
2. Re install the AdminConsole application

1. Remove the AdminConsole -
Goto that profile\bin in which the problem is occurring,
start the server process in that profile.
Issue the following command from command line, with administrative privileges when running on windows
wsadmin -f deployConfig.py remove
This command removes the Adminconfig app.
Restart the server
2. Re install the AdminConsole application
Make sure the server is up and running,
Goto that profile where the issue is occurring,
issue the following command from command line, with administrative privileges when running on windows
wsadmin -f deployConfig.py install

This command installs the AdminConsole.
After successful exit from the command, bounce the server process.

Access the AdminConsole. It worked for me.

InfoCenter URL for the above quoted commands -

http://pic.dhe.ibm.com/infocenter/wasinfo/v6r1/index.jsp?topic=/com.ibm.websphere.base.doc/info/aes/ae/tcon_startstop.html