Modpack error

[ADDB]

If i wanted to start my modpack it crash and then that error comes :

 

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gson/internal/LinkedTreeMap$EntrySet

[b#238]  at com.google.gson.internal.LinkedTreeMap.entrySet(LinkedTreeMap.java:431)
[b#238]  at com.google.gson.JsonObject.entrySet(JsonObject.java:132)
[b#238]  at thaumcraft.codechicken.core.launch.DepLoader$DepLoadInst.loadJson(DepLoader.java:637)
[b#238]  at thaumcraft.codechicken.core.launch.DepLoader$DepLoadInst.loadJSon(DepLoader.java:610)
[b#238]  at thaumcraft.codechicken.core.launch.DepLoader$DepLoadInst.scanDepInfo(DepLoader.java:593)
[b#238]  at thaumcraft.codechicken.core.launch.DepLoader$DepLoadInst.scanDepInfos(DepLoader.java:581)
[b#238]  at thaumcraft.codechicken.core.launch.DepLoader$DepLoadInst.load(DepLoader.java:518)
[b#238]  at thaumcraft.codechicken.core.launch.DepLoader.load(DepLoader.java:678)
[b#238]  at thaumcraft.codechicken.core.launch.DepLoader.call(DepLoader.java:68) 
[b#238]  at cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:126)
[b#238]  at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
[b#238]  at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[b#238] Caused by: java.lang.ClassNotFoundException: com.google.gson.internal.LinkedTreeMap$EntrySet
[b#238]  at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:188)
[b#238]  at java.lang.ClassLoader.loadClass(Unknown Source)
[b#238]  at java.lang.ClassLoader.loadClass(Unknown Source)
[b#238] ... 13 more
[b#238] Caused by: java.lang.NoClassDefFoundError: codechicken/core/asm/ClassOverrider
[b#238]  at codechicken.nei.asm.NEITransformer.transform(NEITransformer.java:124)
[b#238]  at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:276)
[b#238]  at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:174)
[b#238] ... 15 more
[b#238] Caused by: java.lang.ClassNotFoundException: codechicken.core.asm.ClassOverrider
[b#238]  at java.net.URLClassLoader$1.run(Unknown Source)
[b#238]  at java.net.URLClassLoader$1.run(Unknown Source)

[b#238]  at java.security.AccessController.doPrivileged(Native Method)
[b#238]  at java.net.URLClassLoader.findClass(Unknown Source)
[b#238]  at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:115)
[b#238]  at java.lang.ClassLoader.loadClass(Unknown Source)
[b#238]  at java.lang.ClassLoader.loadClass(Unknown Source)
[b#238] ... 18 more
 

can someone help me pls

Edited January 23, 2015 by ADDB

[plowmanplow]

Always provide a link to the custom modpack platform page, or the API URL, when requesting assistance.

Exception in thread "main" java.lang.NoClassDefFoundError: codechicken/core/launch/CodeChickenCorePlugin

You are either missing the CodeChikenCore mod, or it is out of date with your other ChickenBones' mods (Ender Storage, NEI, WR-CBE, Chicken Chunks, etc.)