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via GitHub by gdude2002
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java.lang.NullPointerException: Exception in server tick loop at com.google.common.collect.ImmutableSetMultimap$Builder.putAll(ImmutableSetMultimap.java:228) at net.minecraftforge.common.ForgeChunkManager.forceChunk(ForgeChunkManager.java:807) at com.feed_the_beast.ftbu.api_impl.LoadedChunkStorage.checkChunk(LoadedChunkStorage.java:107) at com.feed_the_beast.ftbu.api_impl.LoadedChunkStorage.checkAll(LoadedChunkStorage.java:73) at com.feed_the_beast.ftbu.world.FTBUUniverseData.func_73660_a(FTBUUniverseData.java:457) at java.util.ArrayList.forEach(ArrayList.java:1249) at com.feed_the_beast.ftbl.api_impl.FTBLibAPI_Impl.func_73660_a(FTBLibAPI_Impl.java:184) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:739) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) at java.lang.Thread.run(Thread.java:745)