Ftb Horizons won't launch

[spycake]

log here:

2013-12-09 10:17:43 [SEVERE] [ForgeModLoader] Unable to launch
java.lang.RuntimeException: java.lang.NullPointerException
    at cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:128)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:111)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
Caused by: java.lang.NullPointerException
    at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:191)
    at com.google.common.hash.AbstractByteHasher.putBytes(AbstractByteHasher.java:69)
    at com.google.common.hash.AbstractStreamingHashFunction.hashBytes(AbstractStreamingHashFunction.java:57)
    at cpw.mods.fml.common.patcher.ClassPatchManager.applyPatch(ClassPatchManager.java:101)
    at cpw.mods.fml.common.patcher.ClassPatchManager.getPatchedResource(ClassPatchManager.java:66)
    at cpw.mods.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper.getFieldType(FMLDeobfuscatingRemapper.java:225)
    at cpw.mods.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper.parseField(FMLDeobfuscatingRemapper.java:202)
    at cpw.mods.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper.setup(FMLDeobfuscatingRemapper.java:163)
    at cpw.mods.fml.common.asm.FMLSanityChecker.injectData(FMLSanityChecker.java:245)
    at cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:123)
    ... 2 more

 

[NEXUS2345]

Please use this and we need the full log. http://desk.feed-the-beast.com/index.php?/Knowledgebase/Article/View/9/0/basic-troubleshooting

 

[Ashzification]

And it's generally easiest if you post your log to pastebin.com (set the log to never expire).
Then we can navigate the log with the line numbers