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java.lang.NullPointerException: Rendering screen	at net.minecraft.client.renderer.InventoryEffectRenderer.func_147044_g(InventoryEffectRenderer.java:72)	at net.minecraft.client.renderer.InventoryEffectRenderer.func_73863_a(InventoryEffectRenderer.java:42)	at net.minecraft.client.gui.inventory.GuiContainerCreative.func_73863_a(GuiContainerCreative.java:638)	at net.minecraft.client.renderer.EntityRenderer.func_78480_b(EntityRenderer.java:1061)	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1001)	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)	at net.minecraft.client.main.Main.main(SourceFile:148)	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)