BKcommonLib

2013-02-07 21:51:41 [SEVERE] null initializing BKCommonLib v1.45 (Is it up to date?)
java.lang.ExceptionInInitializerError
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:186)
	at com.bergerkiller.bukkit.common.Common.loadClasses(Common.java:91)
	at com.bergerkiller.bukkit.common.internal.CommonClasses.loadRef(CommonClasses.java:26)
	at com.bergerkiller.bukkit.common.internal.CommonClasses.init(CommonClasses.java:13)
	at com.bergerkiller.bukkit.common.internal.CommonPlugin.onLoad(CommonPlugin.java:214)
	at org.bukkit.craftbukkit.v1_4_R1.CraftServer.loadPlugins(CraftServer.java:253)
	at org.bukkit.craftbukkit.v1_4_R1.CraftServer.<init>(CraftServer.java:226)
	at gm.<init>(ServerConfigurationManager.java:121)
	at hn.<init>(DedicatedPlayerList.java:19)
	at ho.c(DedicatedServer.java:140)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:720)
	at fy.run(ThreadMinecraftServer.java:16)
Caused by: java.lang.NullPointerException
	at com.bergerkiller.bukkit.common.reflection.SafeField.load(SafeField.java:63)
	at com.bergerkiller.bukkit.common.reflection.SafeField.<init>(SafeField.java:41)
	at com.bergerkiller.bukkit.common.reflection.ClassTemplate.getField(ClassTemplate.java:133)
	at com.bergerkiller.bukkit.common.reflection.classes.ChunkProviderServerRef.<clinit>(ChunkProviderServerRef.java:11)
	... 13 more
2013-02-07 21:51:41 [INFO] [BKCommonLib] Enabling BKCommonLib v1.45
2013-02-07 21:51:41 [SEVERE] [BKCommonLib] BKCommonLib can only run on a CraftBukkit build compatible with Minecraft v1_4_R1
2013-02-07 21:51:41 [SEVERE] [BKCommonLib] Please look for an available BKCommonLib update:
2013-02-07 21:51:41 [SEVERE] [BKCommonLib] http://dev.bukkit.org/server-mods/bkcommonlib/
2013-02-07 21:51:41 [INFO] [BKCommonLib] Disabling BKCommonLib v1.45