06:43:01 [INFOS] This server is running CraftBukkit version git-Bukkit-1.5.2-R1.0-16-g1d933a4-b2805jnks (MC: 1.6.1) (Implementing API version 1.6.1-R0.1-SNAPSHOT)
06:43:01 [GRAVE] Could not load 'plugins/Factions.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: mcore
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
        at org.bukkit.craftbukkit.v1_6_R1.CraftServer.loadPlugins(CraftServer.java:239)
        at org.bukkit.craftbukkit.v1_6_R1.CraftServer.<init>(CraftServer.java:217)
        at net.minecraft.server.v1_6_R1.PlayerList.<init>(PlayerList.java:55)
        at net.minecraft.server.v1_6_R1.DedicatedPlayerList.<init>(SourceFile:11)
        at net.minecraft.server.v1_6_R1.DedicatedServer.init(DedicatedServer.java:106)
        at net.minecraft.server.v1_6_R1.MinecraftServer.run(MinecraftServer.java:391)
        at net.minecraft.server.v1_6_R1.ThreadServerApplication.run(SourceFile:582)