What does this error in the console mean?

Code:java

09.03 13:34:53 [Server] INFO ... 9 more
09.03 13:34:53 [Server] INFO Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml
09.03 13:34:53 [Server] INFO at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:126) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at net.minecraft.server.v1_7_R1.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at net.minecraft.server.v1_7_R1.PlayerList.<init>(PlayerList.java:63) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at org.bukkit.craftbukkit.v1_7_R1.CraftServer.<init>(CraftServer.java:235) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:257) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:133) [craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:176) ~[craftbukkit_dev_2995.jar:git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks]
09.03 13:34:53 [Server] INFO org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
09.03 13:34:53 [Server] ERROR Could not load 'plugins/MenuServiceAPI.jar' in folder 'plugins'
09.03 13:34:53 [Server] INFO This server is running CraftBukkit version git-Bukkit-1.7.2-R0.2-15-g2f3dbd3-b2995jnks (MC: 1.7.2) (Implementing API version 1.7.2-R0.3-SNAPSHOT)
09.03 13:34:53 [Server] INFO Starting Minecraft server on 198.12.123.231:25565

 

BrushPainter
Well you could look at the second line of the error, which clearly explains what's wrong.

 

Assist Yeah I know, but my plugins contain the plugin.ymls, I really can't figure it out... Here's my build path:


Assist Also, every time I export a jar from eclipse I've been getting this error since my plugins have stopped working:


EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

BrushPainter
It's a warning, not an error. You probably have some unused imports, variables etc in your code.

As for your original problem, the error is referring to a jar called MenuServiceAPI(.jar), is that one of your plugins? If so, make sure it contains the plugin.yml file.

 

Assist Oh wow, I swear, I'm the only one who has access to my console and I know %100 I never installed that, yet when I went to Bukget's currently installed it was there. o.o

 

BrushPainter
Well in that case, delete it from your plugins folder. I would recommend you to
1. Open the jar with a tool such as 7zip or WinRAR, and see if it holds any external executables.
2. decompile the jar and see what it does.
3. Scan it for viruses.

 

Assist Alright man, thanks, I'll try that now.