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java.lang.NullPointerException: Updating screen events at mrtska.item.AbstractItem.func_77653_i(AbstractItem.java:155) at net.minecraft.item.ItemStack.func_82833_r(ItemStack.java:427) at buildcraft.core.proxy.CoreProxyClient.getItemDisplayName(CoreProxyClient.java:83) at buildcraft.transport.ItemFacade.getFacadeStateDisplayName(ItemFacade.java:184) at buildcraft.transport.ItemFacade.func_77653_i(ItemFacade.java:143) at net.minecraft.item.ItemStack.func_82833_r(ItemStack.java:427) at littleMaidMobX.LMM_ContainerTriggerSelect$1.compare(LMM_ContainerTriggerSelect.java:80) at littleMaidMobX.LMM_ContainerTriggerSelect$1.compare(LMM_ContainerTriggerSelect.java:64) at java.util.TimSort.countRunAndMakeAscending(Unknown Source) at java.util.TimSort.sort(Unknown Source) at java.util.Arrays.sort(Unknown Source) at java.util.ArrayList.sort(Unknown Source) at java.util.Collections.sort(Unknown Source) at littleMaidMobX.LMM_ContainerTriggerSelect.initAllSelections(LMM_ContainerTriggerSelect.java:87) at littleMaidMobX.LMM_ContainerTriggerSelect.<init>(LMM_ContainerTriggerSelect.java:44) at littleMaidMobX.LMM_GuiTriggerSelect.<init>(LMM_GuiTriggerSelect.java:39) at littleMaidMobX.LMM_GuiIFF.func_146284_a(LMM_GuiIFF.java:92) at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:225) at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:296) at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268) at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1629) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887) 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)