Bukkit

What steps will reproduce the problem?
1.Install DN
2.Load server

What is the expected output? What do you see instead?
I expected it to work but got this.

2012-07-08 01:34:03 [SEVERE] Could not load 'plugins/DeathNotifier.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException NC-BukkitLib
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:213)
at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:189)
at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:53)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:166)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:432)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492).

What version of the product are you using?
The latest

I have this error too.

2012-07-22 13:19:25 [SEVERE] Could not load 'plugins\DeathNotifier.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: NC-BukkitLib
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:230)
at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:206)
at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:55)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:171)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:437)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

I have same error

You need to download the NC-BukkitLib and put it in the plugins folder.