java.lang.NoClassDefFoundError: za/co/mcportcentral/entity/CraftFakePlayer
        at thaumcraft.common.lib.BukkitUtils.getPlayer(BukkitUtils.java:23)
        at thaumcraft.common.lib.BukkitUtils.callBlockBreakEvent(BukkitUtils.java:42)
        at thaumcraft.common.lib.WorldTicker.swapTicks(WorldTicker.java:99)
        at thaumcraft.common.lib.WorldTicker.tickEnd(WorldTicker.java:87)
        at cpw.mods.fml.common.SingleIntervalHandler.tickEnd(SingleIntervalHandler.java:34)
        at cpw.mods.fml.common.FMLCommonHandler.tickEnd(FMLCommonHandler.java:150)
        at cpw.mods.fml.common.FMLCommonHandler.onPostWorldTick(FMLCommonHandler.java:294)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:893)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:330)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:778)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:660)
        at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.lang.ClassNotFoundException: za.co.mcportcentral.entity.CraftFakePlayer
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 12 more
Caused by: java.lang.NullPointerException
        at org.objectweb.asm.ClassReader.<init>(Unknown Source)
        at codechicken.lib.asm.ASMHelper.createClassNode(ASMHelper.java:113)
        at codechicken.lib.asm.ASMHelper.createClassNode(ASMHelper.java:107)
        at codechicken.core.asm.DefaultImplementationTransformer.transform(DefaultImplementationTransformer.java:84)
        at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:274)
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:172)
        ... 14 more