Achievement

2012-01-11 01:18:38 [SEVERE] Could not load 'plugins/Achievements.jar' in folder 'plugins': Stats
org.bukkit.plugin.UnknownDependencyException: Stats
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135)
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:215)
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:136)
	at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:151)
	at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:127)
	at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:52)
	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:399)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)