Cannot Start Server on Linux

[Noob_Squad]

Title: Cannot Start Server on Linux

Version: 3.0.3/3.0.4

OS: Cent OS 6.1

Java Version: JRE-7u5-Linux-x64

Description of Problem:

When I attempt to run the tekkit server it spams the console with errors on start and then just immediately stops it. I red somewhere that you just need to remove wireless redstone, but that didn't seem to help.

Error Messages:

There are alot of [sEVERE] errors, and a lot of java errors and then the server just stops itself.

Error Log:

182 recipes

27 achievements

17:18:17 [iNFO] Starting minecraft server version 1.2.5

17:18:17 [iNFO] Forge Mod Loader version @MAJOR@.@MINOR@.@REV@.@BUILD@ for Minecraft @MCVERSION@ loading

17:18:17 [iNFO] Loading mods from /home/tekkit/mods

17:18:17 [sEVERE] java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

17:18:17 [sEVERE]      at java.lang.ClassLoader.defineClass1(Native Method)

17:18:17 [sEVERE]      at java.lang.ClassLoader.defineClass(ClassLoader.java:634)

17:18:17 [sEVERE]      at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

17:18:17 [sEVERE]      at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)

17:18:17 [sEVERE]      at java.net.URLClassLoader.access$000(URLClassLoader.java:73)

17:18:17 [sEVERE]      at java.net.URLClassLoader$1.run(URLClassLoader.java:212)

17:18:17 [sEVERE]      at java.security.AccessController.doPrivileged(Native Method)

17:18:17 [sEVERE]      at java.net.URLClassLoader.findClass(URLClassLoader.java:205)

17:18:17 [sEVERE]      at java.lang.ClassLoader.loadClass(ClassLoader.java:321)

17:18:17 [sEVERE]      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

17:18:17 [sEVERE]      at java.lang.ClassLoader.loadClass(ClassLoader.java:314)

17:18:17 [sEVERE]      at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

17:18:17 [sEVERE]      at java.lang.Class.forName0(Native Method)

17:18:17 [sEVERE]      at java.lang.Class.forName(Class.java:264)

17:18:17 [sEVERE]      at cpw.mods.fml.common.Loader.loadModClass(Loader.java:440)

17:18:17 [sEVERE]      at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:497)

17:18:17 [sEVERE]      at cpw.mods.fml.common.Loader.load(Loader.java:375)

17:18:17 [sEVERE]      at cpw.mods.fml.common.Loader.loadMods(Loader.java:527)

17:18:17 [sEVERE]      at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113)

17:18:17 [sEVERE]      at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118)

17:18:17 [sEVERE]      at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)

17:18:17 [sEVERE]      at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

17:18:17 [sEVERE] Unexpected exception

java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : 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 java.lang.ClassLoader.loadClass(ClassLoader.java:321)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:314)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:264)

        at cpw.mods.fml.common.Loader.loadModClass(Loader.java:440)

        at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:497)

        at cpw.mods.fml.common.Loader.load(Loader.java:375)

        at cpw.mods.fml.common.Loader.loadMods(Loader.java:527)

        at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113)

        at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118)

        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)

        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

>

17:18:32 [iNFO] Stopping server

17:18:32 [sEVERE] java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

17:18:32 [sEVERE]      at java.util.ArrayList.rangeCheck(ArrayList.java:571)

17:18:32 [sEVERE]      at java.util.ArrayList.get(ArrayList.java:349)

17:18:32 [sEVERE]      at net.minecraft.server.MinecraftServer.stop(MinecraftServer.java:412)

17:18:32 [sEVERE]      at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:483)

17:18:32 [sEVERE]      at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

17:18:32 [iNFO] Stopping server

17:18:32 [sEVERE] Exception in thread "Thread-3"

17:18:32 [sEVERE] java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

17:18:32 [sEVERE]      at java.util.ArrayList.rangeCheck(ArrayList.java:571)

17:18:32 [sEVERE]      at java.util.ArrayList.get(ArrayList.java:349)

17:18:32 [sEVERE]      at net.minecraft.server.MinecraftServer.stop(MinecraftServer.java:412)

17:18:32 [sEVERE]      at org.bukkit.craftbukkit.util.ServerShutdownThread.run(ServerShutdownThread.java:14)