java.lang.NoClassDefFoundError: net/minecraftforge/client/model/ISmartItemModel
	at net.minecraft.client.renderer.ItemModelMesher.func_178089_a(ItemModelMesher.java:55)
	at net.minecraft.client.renderer.entity.RenderItem.func_175042_a(RenderItem.java:370)
	at net.minecraft.client.renderer.entity.RenderItem.func_180450_b(RenderItem.java:421)
	at net.minecraft.client.gui.GuiIngame.func_175184_a(SourceFile:878)
	at net.minecraft.client.gui.GuiIngame.func_180479_a(SourceFile:334)
	at net.minecraftforge.client.GuiIngameForge.func_180479_a(GuiIngameForge.java:306)
	at net.minecraftforge.client.GuiIngameForge.func_175180_a(GuiIngameForge.java:130)
	at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1266)
	at sushen.eieae.func_78480_b(Unknown Source)
	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1048)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:345)
	at net.minecraft.client.main.Main.main(SourceFile:120)
	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:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: net.minecraftforge.client.model.ISmartItemModel
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 18 more
Caused by: java.lang.SecurityException: class "net.minecraftforge.client.model.ISmartItemModel"'s signer information does not match signer information of other classes in the same package
	at java.lang.ClassLoader.checkCerts(Unknown Source)
	at java.lang.ClassLoader.preDefineClass(Unknown Source)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
	... 20 more