BkCommon

2013-04-12 20:37:48 [SEVERE] org/bukkit/craftbukkit/v1_4_R1/inventory/CraftItemStack initializing BKCommonLib v1.5 (Is it up to date?)
java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_4_R1/inventory/CraftItemStack
	at com.bergerkiller.bukkit.common.conversion.type.WrapperConverter.<clinit>(WrapperConverter.java:184)
	at com.bergerkiller.bukkit.common.conversion.type.ConversionTypes.<clinit>(ConversionTypes.java:87)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at com.bergerkiller.bukkit.common.Common.loadClasses(Common.java:100)
	at com.bergerkiller.bukkit.common.internal.CommonClasses.init(CommonClasses.java:13)
	at com.bergerkiller.bukkit.common.internal.CommonPlugin.onLoad(CommonPlugin.java:432)
	at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:244)
	at org.bukkit.craftbukkit.v1_5_R2.CraftServer.<init>(CraftServer.java:217)
	at net.minecraft.server.v1_5_R2.PlayerList.<init>(PlayerList.java:55)
	at net.minecraft.server.v1_5_R2.DedicatedPlayerList.<init>(SourceFile:11)
	at net.minecraft.server.v1_5_R2.DedicatedServer.init(DedicatedServer.java:105)
	at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:379)
	at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_4_R1.inventory.CraftItemStack
	at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:70)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 14 more