LibNBT_1_7_R4-obf

[15:20:07] [Server thread/ERROR]: Could not load 'plugins\LibNBT_1_7_R4-obf.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
	at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:188) ~[JavaPluginLoader.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:133) [SimplePluginManager.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugins(CraftServer.java:320) [CraftServer.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.06.212]
	at net.minecraft.world.storage.SaveHandler.initBukkitData(SaveHandler.java:458) [ayq.class:?]
	at net.minecraft.world.storage.SaveHandler.func_75757_d(SaveHandler.java:136) [ayq.class:?]
	at net.minecraft.world.World.<init>(World.java:350) [ahb.class:?]
	at net.minecraft.world.WorldServer.<init>(WorldServer.java:153) [mt.class:?]
	at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:356) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:329) [lt.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620) [MinecraftServer.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_31]
Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml
	... 11 more
[15:20:07] [Server thread/INFO]: Mapping loaded 11 packages, 7841 classes, 26711 fields, 53884 methods, flags 1ffa