Alright so I stated off by force updating my Minecraft. I Then downloaded Modloader 1.2.5 and installed it drag and drop into my Minecraft jar (deleted META inf). Ran Minecraft worked fine. I then installed forge 1.2.5 and tried running Minecraft. And it froze on the Updating Minecraft screen, underneath it says done loading but never gets beyond that. I've tried this five or six times all with the same result.

Here is the error report.

 

===Simple Minecraft Error Test===

 

Starting Minecraft...

 

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

class

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

        at java.lang.ClassLoader.defineClass(Unknown Source)

        at java.security.SecureClassLoader.defineClass(Unknown Source)

        at java.net.URLClassLoader.defineClass(Unknown Source)

        at java.net.URLClassLoader.access$100(Unknown Source)

        at java.net.URLClassLoader$1.run(Unknown Source)

        at java.net.URLClassLoader$1.run(Unknown Source)

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

        at java.net.URLClassLoader.findClass(Unknown Source)

        at java.lang.ClassLoader.loadClass(Unknown Source)

        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

        at java.lang.ClassLoader.loadClass(Unknown Source)

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

        at java.lang.Class.privateGetDeclaredMethods(Unknown Source)

        at java.lang.Class.getMethod0(Unknown Source)

        at java.lang.Class.getMethod(Unknown Source)

        at sun.launcher.LauncherHelper.getMainMethod(Unknown Source)

        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

 

Finished session

 

 

Right click, Select all,

Press Enter (This will copy the output to your clipboard).

Then paste the result on http://www.pastebin.com

 

===========#Risucraft===========

 

Press any key to continue . . .

 

I think this is the modloader.txt

 

May 26, 2012 11:23:36 AM ModLoader init

FINE: ModLoader 1.2.5 Initializing...

May 26, 2012 11:23:36 AM ModLoader readFromClassPath

FINER: Adding mods from C:\Users\Silas\AppData\Roaming\.minecraft\bin\minecraft.jar

May 26, 2012 11:23:36 AM ModLoader readFromClassPath

FINER: Zip found.

May 26, 2012 11:23:36 AM ModLoader addAllRenderers

FINE: Initialized

 

I have searched on the web for a solution but have come up empty and I'm not real computer savvy so any help would be much appreciated. Thanks!  

 

Unsure, but from a guess it sounds like the install is corrupted.  Either a bad download (redownload everything) or modded wrong (try a fresh MC jar and re-mod, if you are on windows use 7zip as it seems to work best).

I redownloaded forge from a different site and it works! Thanks a bunch for your help!

I have same probleme,reinstalled everything used 7zip still didnt get it 2 work

Congrats Simplsys on your ban. Note