Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityClientPlayerMP
	at uk.co.qmunity.lib.part.compat.fmp.FMPPartFactory.createPart(FMPPartFactory.java:47)
	at codechicken.multipart.MultiPartRegistry$$anonfun$registerParts$1.apply(MultiPartRegistry.scala:67)
	at codechicken.multipart.MultiPartRegistry$$anonfun$registerParts$1.apply(MultiPartRegistry.scala:67)
	at codechicken.multipart.MultiPartRegistry$$anonfun$registerParts$2$$anonfun$apply$1.apply(MultiPartRegistry.scala:88)
	at codechicken.multipart.MultiPartRegistry$$anonfun$registerParts$2$$anonfun$apply$1.apply(MultiPartRegistry.scala:88)
	at codechicken.multipart.MultiPartRegistry$.createPart(MultiPartRegistry.scala:164)
	at codechicken.multipart.TileMultipart$$anonfun$createFromNBT$1.apply(TileMultipart.scala:664)
	at codechicken.multipart.TileMultipart$$anonfun$createFromNBT$1.apply(TileMultipart.scala:660)
	at scala.collection.immutable.Range.foreach(Range.scala:160)
	at codechicken.multipart.TileMultipart$.createFromNBT(TileMultipart.scala:660)
	at codechicken.multipart.handler.MultipartSaveLoad$.loadTiles(MultipartSaveLoad.scala:64)
	at codechicken.multipart.handler.MultipartEventHandler$.tileEntityLoad(MultipartEventHandler.scala:24)
	at cpw.mods.fml.common.eventhandler.ASMEventHandler_607_MultipartEventHandler$_tileEntityLoad_Load.invoke(.dynamic)
	at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
	at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138)
	at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:45)
	at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:15)
	at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344)
	at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302)
	at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12)
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:164)
	at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:137)
	at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:469)
	at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:434)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:329)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.entity.EntityClientPlayerMP
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:101)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 27 more