Solved Server can't read my plugin.

Hey there!
I recently made a plugin for my server that worked perfectly on my server on my computer.
I wanted to upload the plugin to my VPS server, the commands didn't work.

I have updated to the latest bukkit now. (1.5.1 R.03)
In the console, I saw this:

Code:

2013-04-17 20:31:21 [SEVERE] Could not load 'plugins/Superizee.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/superizee/superizee/Main : Unsupported major.minor version 51.0
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:239)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.reload(CraftServer.java:603)
    at org.bukkit.Bukkit.reload(Bukkit.java:184)
    at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:187)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.dispatchCommand(CraftServer.java:523)
    at org.bukkit.craftbukkit.v1_5_R2.CraftServer.dispatchServerCommand(CraftServer.java:512)
    at net.minecraft.server.v1_5_R2.DedicatedServer.am(DedicatedServer.java:261)
    at net.minecraft.server.v1_5_R2.DedicatedServer.r(DedicatedServer.java:226)
    at net.minecraft.server.v1_5_R2.MinecraftServer.q(MinecraftServer.java:474)
    at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:407)
    at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.UnsupportedClassVersionError: com/superizee/superizee/Main : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
    at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:80)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:334)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173)
    ... 14 more

Thanks for helping!

bump

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

 

Don't bump within 12-24 hours.

 

Yea but no one replied

 

You've bumped within 5 minutes.

 

What version of Java do you have on your home pc vs your VPS?

I bet you have 6 on your VPS and 7 on your PC.

 

Any Ideas how to update Java?
It's a Linux Bash VPS

 

Btw this should be In the plugin development section, requested for move

 

This is the right section.

 

His own plugin coming up with errors , this goes in the plugin dev section

 

You need to change how you compile your plugin so it compiles with an older version of java. What IDE are you using?

 

Oops sorry, thought it was already in Plugin Development.

 

Alanox
Google how to update Java on the Operating System you have installed on your VPS.

jacklin213 Super User
It really doesn't matter in this case. Its a common problem that shows up when you run a plugin compiled on a newer version of Java than you have installed. All you have done is spam up this thread with pointless debate on what forum it belongs in. A report will suffice and the moderators will make the call.

 

No tutorials helped me. This is annoying :/

It should work. Because the plugin PlayerColor that I made is also on the server, it works perfectly.

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

 

Maybe you set up the project differently there? What IDE are you using, and is it a maven(pom.xml) project?

 

Oh well.
I am pretty new to Java. The only thing I know is that I use Eclipse with JRE 7

 

Alanox

You can just set your projects compliance to Java 1.6
That 'should' solve your problem.

Right click your project -> Properties -> Java compiler -> Compiler Compliance Level = 1.6

 

be sure you just have the beta edition, for the others may have errors such as this

 

Thanks a lot!