Hello Nilesh,
I think i can help u out.
We get this error when the port(8080 in ur case) thats required by server is already in use by any other application or tool like communicator or so.
So what needs to be done is, go to command prompt and type
netstat -o
this will give u some details and in that check the local address column which application is using it. Get its PID from last column and kill that process in task manager and then continue with ur work u ll nt get that error again.
