Java Exception when opening iReport

Here is the error I'm getting. Tried to open other version of ireport and didn't encountered any errors.

Exception in thread "main" java.lang.IllegalArgumentException: port out of range:1313821769
    at java.net.InetSocketAddress.checkPort(InetSocketAddress.java:143)
    at java.net.InetSocketAddress.<init>(InetSocketAddress.java:188)
    at java.net.Socket.<init>(Socket.java:244)
    at org.netbeans.CLIHandler.initialize(CLIHandler.java:661)
    at org.netbeans.CLIHandler.initialize(CLIHandler.java:346)
    at org.netbeans.MainImpl.execute(MainImpl.java:195)
    at org.netbeans.MainImpl.main(MainImpl.java:76)
    at org.netbeans.Main.main(Main.java:75)

I am using java 7 on my ireport.conf, also I am using Ubuntu

jdkhome="/usr/jdk1.7.0_55.for.tmpfs/"

The application is working fine this morning and this just happens, I've tried search for solutions but the only solutions I found on the internet is to check whether I am using java 7 which I am. I guess the port has something to do with this but I'm not sure where to start.

Solution

Problem is with the lock file.

Try to find it using this command:

find /home/your_user_name -name lock

It will be located in path like /home/your_user_name/.ireport/4.5.1/lock

Delete this file and try to start iReport again.