Solved ??Unsupported Version??

Hey, I have been doing Bukkit for some time now, and this error has came upon me.

Code:

01.02 12:47:28 [Server] INFO Caused by: java.lang.UnsupportedClassVersionError: me/macboinc1/hub/Hub : Unsupported major.minor version 52.0
01.02 12:47:28 [Server] INFO at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:261) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at net.minecraft.server.v1_7_R3.DedicatedServer.aB(DedicatedServer.java:296) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchServerCommand(CraftServer.java:688) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:701) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.Bukkit.reload(Bukkit.java:288) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.craftbukkit.v1_7_R3.CraftServer.reload(CraftServer.java:797) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugins(CraftServer.java:355) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[craftbukkit-beta.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
01.02 12:47:28 [Server] INFO org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: me/macboinc1/hub/Hub : Unsupported major.minor version 52.0
01.02 12:47:28 [Server] ERROR Could not load 'plugins/Hub.jar' in folder 'plugins'

I have tried switching my Java version from 1.8 to 1.7, and 1.7 to 1.8. It's not working. Please help...
Thanks,
-Mac

 

Compile with a lower or the same version of Java that your server is running.

 

The server runs on 7

 

@macboinc Just compile with 6.

 

You're compiling your plugin to run for Java 8.

 

Java 6 was giving the server problems, and at this point, I am going to change hosting services.

 

I mean it's not their fault, they use Java 7 and you're compiling your plugin with Java 8. That's exactly what the error is saying. Whatever you think is switching the version you are compiling with, it isn't doing it.

 

I have tried compiling it in Java 6,7, and 8. It's not working... I have completely removed Java from my PC four times over this matter.

 

Just to clarify, to change compilation versions, you completely change your Java version and than right click properties and go to Java Build Path. Than delete the Java library and add the new versions?

@1Rogue

EDIT by Timtower: merged posts

 

No, you change your IDE settings and specify to compile with a java version other than your system has installed (or other behaviors depending on your IDE). This can also change depending on whether or not you use maven or other tools for compilation.

 

So I would do it by doing this: http://i.stack.imgur.com/VwTxr.png

 

There could be other options as well, I don't use eclipse.