java.util.concurrent.ExecutionException: java.lang.NullPointerException

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java.lang.NullPointerException
java.lang.NullPointerException:
at net.minecraftforge.fluids.capability.FluidTankProperties.convert(FluidTankProperties.java:34)
at mekanism.common.base.FluidHandlerWrapper.getTankProperties(FluidHandlerWrapper.java:24)
at mekanism.common.util.PipeUtils.isValidAcceptorOnSide(PipeUtils.java:39)
at mekanism.common.multipart.PartMechanicalPipe.isValidAcceptor(PartMechanicalPipe.java:183)
at mekanism.common.multipart.PartSidedPipe.getPossibleAcceptorConnections(PartSidedPipe.java:317)
at mekanism.common.multipart.PartSidedPipe.refreshConnections(PartSidedPipe.java:639)
at mekanism.common.multipart.PartSidedPipe.onAdded(PartSidedPipe.java:704)
at mcmultipart.multipart.MultipartContainer.addPart(MultipartContainer.java:190)
at mcmultipart.multipart.MultipartContainer.addPart(MultipartContainer.java:163)
at mcmultipart.block.TileMultipartContainer.addPart(TileMultipartContainer.java:98)
at mcmultipart.multipart.MultipartHelper.addPart(MultipartHelper.java:101)
at mcmultipart.multipart.MultipartHelper.addPart(MultipartHelper.java:81)
at mcmultipart.item.ItemMultiPart.place(ItemMultiPart.java:34)
at mcmultipart.item.ItemMultiPart.func_180614_a(ItemMultiPart.java:60)
at net.minecraft.network.NetHandlerPlayServer.func_184337_a(NetHandlerPlayServer.java:679)
at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:55)
at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:11)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at net.minecraft.util.Util.func_181617_a(SourceFile:45)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:668)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:240)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)
at java.lang.Thread.run(Unknown Source)

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