Bukkit

What steps will reproduce the problem?
1. Put Mobs on the server.
2. Put Extra Events on the server.
3. Start it.

What is the expected output? What do you see instead?
I expected Mobs to work properly, given the fact that I have installed Extra Events. Instead, Mobs gives this error:

[16:53:21] [Server thread/ERROR]: Could not load 'plugins/Mobs.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: Extra Events
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:201) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:350) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.<init>(CraftServer.java:312) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.PlayerList.<init>(PlayerList.java:63) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:126) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit-beta.1.7.2.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]

Shortly afterwards, Extra Events says:
[16:53:22] [Server thread/INFO]: [Extra_Events] Loading Extra_Events v1.6.4 b2

What version of the product are you using?
Mobs 1.7.2 b1
Extra Events 1.6.4 b2

Do you have an error log of what happened?
See above.

Please provide any additional information below.
Nope, that's all there is to it.

Can you try renaming Extra_Events to Extra Events?