6:58:37 PM [SEVERE] Could not load 'plugins\Zombes4Bukkit-dev-SNAPSHOT.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: net/minecraft/server/v1_5_R1/PlayerConnection
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184)
at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:307)
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:231)
at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:261)
at org.bukkit.craftbukkit.v1_5_R2.CraftServer.<init>(CraftServer.java:239)
at net.minecraft.server.v1_5_R2.PlayerList.<init>(PlayerList.java:56)
at net.minecraft.server.v1_5_R2.DedicatedPlayerList.<init>(SourceFile:11)
at net.minecraft.server.v1_5_R2.DedicatedServer.init(DedicatedServer.java:109)
at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/server/v1_5_R1/PlayerConnection
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173)
... 9 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_5_R1.PlayerConnection
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)
... 12 more