Minecraft Forge 1.6.2 Crashes when I add mods to my mod folder???

SilverSoul818 · August 21, 2013

Whenever I try to add forge mods into my mod folder, I end up having my game crash when I start it. No matter what mods I add in, they never work. When I try to open Minecraft Forge with mods, the launcher opens up to the Mojang logo, and then closes. I wait several minutes and still, nothing happens. When I deleted the mods inside of the folder, the launcher opens up normally and works fine. Here's the error I get when I try to launch Minecraft Forge with mods.

---- Minecraft Crash Report ----

// Everything's going to plan. No, really, that was supposed to happen.

Time: 8/20/13 7:14 PM

Description: Initializing game

java.lang.NoClassDefFoundError: kieranvs/avatar/command/CommandSpawnEntity

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

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

at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:457)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:194)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:105)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:510)

at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:182)

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:470)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)

at net.minecraft.client.main.Main.main(SourceFile:101)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)

at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

Caused by: java.lang.ClassNotFoundException: kieranvs.avatar.command.CommandSpawnEntity

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:179)

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

... 35 more

Caused by: java.lang.VerifyError: Cannot inherit from final class

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

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

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

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:171)

... 37 more

A detailed walkthrough of the error, its code path and all known details is as follows:

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-- Head --

Stacktrace: