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

[TikeRike]

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

[HMPerson1]

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

[LexManos]

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.

[TikeRike]

Bleh, I think I know why... Didn't know 1.4.6 got released and I probably downloaded the 1.4.6 version of the minecraft server.

 

Anybody have a spare 1.4.5 Minecraft Server.jar (maybe with Forge pre-installed)?

[keepcalm]

Vanilla 1.4.5 server: http://assets.minecraft.net/1_4_5/minecraft_server.jar

[TikeRike]

Thanks, I'll try ASAP