Bukkit

2012-06-10 17:53:10 [SEVERE] Error occurred while enabling AutoAnnouncer v1.7-03.23 (Is it up to date?)
java.lang.NoClassDefFoundError: net/milkbowl/vault/permission/Permission
at com.sectorgamer.sharkiller.AutoAnnouncer.AnnouncerPerm.enablePermissions(AnnouncerPerm.java:18)
at com.sectorgamer.sharkiller.AutoAnnouncer.Announcer.onEnable(Announcer.java:45)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:215)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:256)
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:238)
at net.minecraft.server.MinecraftServer.t(MinecraftServer.java:381)
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:368)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:197)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:432)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.ClassNotFoundException: net.milkbowl.vault.permission.Permission
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
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:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
...12 more.