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via GitHub by CrankyScott
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java.lang.NoSuchFieldError: field_177997_b	at org.blockartistry.mod.DynSurround.util.MyMutableBlockPos.add(MyMutableBlockPos.java:36)	at org.blockartistry.mod.DynSurround.util.MyMutableBlockPos.func_177982_a(MyMutableBlockPos.java:32)	at org.blockartistry.mod.DynSurround.client.handlers.AreaSurveyHandler.doSurvey(AreaSurveyHandler.java:167)	at org.blockartistry.mod.DynSurround.client.handlers.AreaSurveyHandler.process(AreaSurveyHandler.java:198)	at org.blockartistry.mod.DynSurround.client.handlers.EffectManager.clientTick(EffectManager.java:124)	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1837_EffectManager_clientTick_ClientTickEvent.invoke(.dynamic)	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)	at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185)	at net.minecraftforge.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:339)	at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1650)	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1055)	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371)	at net.minecraft.client.main.Main.main(SourceFile:124)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:483)	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)