Basically I am sure I am doing everything right but when ever I load Minecraft I get this error report.

 

2 mods loaded

Minecraft Forge 3.3.7.135

FML v2.2.48.135

Forge Mod Loader version 2.2.48.135 for Minecraft 1.2.5

mod_MinecraftForge : Loaded (minecraft.jar)

mod_ModLoaderMp : Loaded (minecraft.jar)

 

 

      Minecraft has crashed!     

      ----------------------     

 

Minecraft has stopped running because it encountered a problem.

 

 

 

 

--- BEGIN ERROR REPORT 5d60e10f --------

Generated 6/17/12 2:15 PM

 

Minecraft: Minecraft 1.2.5

OS: Mac OS X (x86_64) version 10.6.8

Java: 1.6.0_29, Apple Inc.

VM: Java HotSpot 64-Bit Server VM (mixed mode), Apple Inc.

LWJGL: 2.4.2

OpenGL: ATI Radeon HD 4670 OpenGL Engine version 2.1 ATI-1.6.36, ATI Technologies Inc.

 

cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: twilightforest-1-1/mod_TwilightForest (wrong name: mod_TwilightForest)

at cpw.mods.fml.common.Loader.load(Loader.java:436)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:592)

at cpw.mods.fml.client.FMLClientHandler.onPreLoad(FMLClientHandler.java:193)

at net.minecraft.client.Minecraft.a(Minecraft.java:383)

at net.minecraft.client.Minecraft.run(Minecraft.java:735)

at java.lang.Thread.run(Thread.java:680)

Caused by: cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: twilightforest-1-1/mod_TwilightForest (wrong name: mod_TwilightForest)

at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527)

at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:561)

at cpw.mods.fml.common.Loader.load(Loader.java:419)

... 5 more

Caused by: java.lang.NoClassDefFoundError: twilightforest-1-1/mod_TwilightForest (wrong name: mod_TwilightForest)

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 java.lang.ClassLoader.loadClass(ClassLoader.java:295)

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

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:247)

at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494)

... 7 more

--- END ERROR REPORT e1488655 ----------

You are not doing everything right.

Really.. Scott.. that's not helpful.

However, it looks like either 1) There is a bug in FML with mods that are in folder in the mods folder {which there shouldn't be as I have used many mods in such a manor}, or 2) You didn't install twilight forest properly.

Link the download you used, and type the setup steps you did.

Thanks for you help Lex. All needed to do whos delete my current mods folder and replace it. It works perfectly now!