When i try to login i get this:

 

java.lang.IllegalArgumentException: Bad arguments
            at javax.crypto.Cipher.doFinal.<DashoA13*..>
            at net.sf.l2j.loginserver.clientpackets.RequestAuthLogin.<init><RequestA
uthLogin.java:58>
            at net.sf.l2j.loginserver.ClientThread.run<ClientThread.java:183> 

 

what is the problem here guyz?

i have compiled it and when i tryto login i see this in loginserver :(....

C4 Client

Help!

Well , if i were you , i would modify the hosts file.

 

Don't use a patch to c4 servers .

 

Now about your problem , you are not using the right client version for the server version.

 

If you stuck at login screen , by changing the protocol revisions , would not help you.

 

To make it work you need the correct client.