Hi, Ive just tryed installing forge to my vanilla server on 1.4.7, I cant get it to install with the .jar, Everytime I try it gives me an error saying: "A java exception has occured" and then closes.

No logs.

(Has not been installed)

This is the first time I've tryed to use forge for my server.

How to install

Im trying to get this to work on MC 1.5.1, iv followed the EAQ and when i run the ruesulting .jar file it gives me the same message: "A Java Exception Has Occurred". Can anyone help?

The bellow info is all i have on the exception.

 

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

class

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

        at java.lang.ClassLoader.defineClass(ClassLoader.java:791)

        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14

2)

        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)

        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)

        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)

        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

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

        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:423)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:356)

        at java.lang.Class.getDeclaredMethods0(Native Method)

        at java.lang.Class.privateGetDeclaredMethods(Class.java:2442)

        at java.lang.Class.getMethod0(Class.java:2685)

        at java.lang.Class.getMethod(Class.java:1620)

        at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:492)

        at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:484)

One or more of your mods is not for the version of minecraft you're running.