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Exception in thread "main" java.lang.IncompatibleClassChangeError: Implementing


TikeRike
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I recently tried to install Forge Universal version 6.4.1 on the 1.4.5 Minecraft server version. But everytime I try to run the server I get this message:

 

 

Exception in thread "main" java.lang.IncompatibleClassChangeError: Implementing class

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)

at java.lang.ClassLoader.defineClass(ClassLoader.java:615)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

logout

 

 

Can someone help me with this problem?

 

I am on a Mac

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How did you install it and how are you running it (e.g. startup script)?

There's an EAQ for a reason. Read it!

"Note that failure to read this will make you look idiotic. You don't want that do you?" -- luacs1998

 

First rule of bug reports: More information is always better.

Oh, and logs OR IT DIDN'T HAPPEN!!

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This typically happens when you have something in there that is for the wrong version of minecraft.

Remove everything including your mods and coremods folder. And start fresh.

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
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Protip: try and find answers yourself before asking on the forum.

It's pretty likely that there is an answer.

 

Was I helpful? Give me a thank you!

 

 

width=635 height=903http://bit.ly/HZ03zy[/img]

 

 

Tired of waiting for mods to port to bukkit?

use BukkitForge! (now with a working version of WorldEdit!)

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