[EN] Error starting ORMI server ... port 5520 The socket name is already in use

Problem: Enterprise Manager Console won't start with error "Error starting ORMI server ... port 5520. The socket name is already in use".

Solution: 

1. Shutdown Enterprise Manager Console.
emctl stop dbconsole

2. Check if there are any processes with name like "oc4j". If there are, kill them.
ps -ef | grep oc4j
kill -9 ....

3.  Open Enterprise Manager Console.  
emctl start dbconsole