Craftbook build #356, Bukkit build #1933. Looks like a class dependency was added but not checked in or included with the actual deployed artifact?

2012-02-12 04:36:47 [SEVERE] Could not pass event org.bukkit.event.player.PlayerInteractEvent to CraftBookMechanisms
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$103.execute(JavaPluginLoader.java:1026)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:61)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:460)
at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:187)
at net.minecraft.server.ItemInWorldManager.interact(ItemInWorldManager.java:283)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:602)
at net.minecraft.server.Packet15Place.handle(SourceFile:39)
at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:100)
at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:552)
at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:537)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:435)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.bukkit.plugin.java.JavaPluginLoader$103.execute(JavaPluginLoader.java:1024)
... 13 more
Caused by: java.lang.NoClassDefFoundError: de/schlichtherle/io/File
at com.sk89q.craftbook.mech.Bookcase$Factory.detect(Bookcase.java:177)
at com.sk89q.craftbook.mech.Bookcase$Factory.detect(Bookcase.java:166)
at com.sk89q.craftbook.MechanicManager.detect(MechanicManager.java:349)
at com.sk89q.craftbook.MechanicManager.load(MechanicManager.java:267)
at com.sk89q.craftbook.MechanicManager.dispatchBlockRightClick(MechanicManager.java:172)
at com.sk89q.craftbook.bukkit.MechanicListenerAdapter$MechanicPlayerListener.onPlayerInteract(MechanicListenerAdapter.java:97)
... 17 more
Caused by: java.lang.ClassNotFoundException: de.schlichtherle.io.File
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 23 more

Should be fixed in build 357, commit 24dd4e0. Please let me know if you have further issues :)