Description: Exception in server tick loop

cpw.mods.fml.common.MissingModsException
	at cpw.mods.fml.common.Loader.sortModList(Loader.java:244)
	at cpw.mods.fml.common.Loader.loadMods(Loader.java:472)
	at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:87)
	at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:319)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:170)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620)
	at java.lang.Thread.run(Unknown Source)