netherores not working

[sincerecorn]

hey guys when i try to start my server using the netherores mod, it comes up with this error:

C:\Users\Joseph\Desktop\tekkit>java -Xmx3G -Xms2G -jar Tekkit.jar nogui

182 recipes

27 achievements

17:02:15 [iNFO] Starting minecraft server version 1.2.5

17:02:15 [iNFO] Forge Mod Loader version @MAJOR@.@MINOR@.@REV@.@BUILD@ for Minec

raft @MCVERSION@ loading

17:02:15 [iNFO] Loading mods from C:\Users\Joseph\Desktop\tekkit\mods

17:02:15 [sEVERE] java.lang.UnsupportedClassVersionError: net/minecraft/server/m

od_NetherOres : Unsupported major.minor version 51.0

17:02:15 [sEVERE]      at java.lang.ClassLoader.defineClass1(Native Method)

17:02:15 [sEVERE]      at java.lang.ClassLoader.defineClassCond(ClassLoader.jav

a:631)

17:02:15 [sEVERE]      at java.lang.ClassLoader.defineClass(ClassLoader.java:61

5)

17:02:15 [sEVERE]      at java.security.SecureClassLoader.defineClass(SecureCla

ssLoader.java:141)

17:02:15 [sEVERE]      at java.net.URLClassLoader.defineClass(URLClassLoader.ja

va:283)

17:02:15 [sEVERE]      at java.net.URLClassLoader.access$000(URLClassLoader.jav

a:58)

17:02:15 [sEVERE]      at java.net.URLClassLoader$1.run(URLClassLoader.java:197

)

17:02:15 [sEVERE]      at java.security.AccessController.doPrivileged(Native Me

thod)

17:02:15 [sEVERE]      at java.net.URLClassLoader.findClass(URLClassLoader.java

:190)

17:02:15 [sEVERE]      at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

 

17:02:15 [sEVERE]      at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j

ava:301)

17:02:15 [sEVERE]      at java.lang.ClassLoader.loadClass(ClassLoader.java:295)

 

17:02:15 [sEVERE]      at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

 

17:02:15 [sEVERE]      at java.lang.Class.forName0(Native Method)

17:02:15 [sEVERE]      at java.lang.Class.forName(Class.java:247)

17:02:15 [sEVERE]      at cpw.mods.fml.common.Loader.loadModClass(Loader.java:4

40)

17:02:15 [sEVERE]      at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.jav

a:497)

17:02:15 [sEVERE]      at cpw.mods.fml.common.Loader.load(Loader.java:375)

17:02:15 [sEVERE]      at cpw.mods.fml.common.Loader.loadMods(Loader.java:527)

17:02:15 [sEVERE]      at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBuk

kitHandler.java:113)

17:02:15 [sEVERE]      at net.minecraft.server.MinecraftServer.init(MinecraftSe

rver.java:118)

17:02:15 [sEVERE]      at net.minecraft.server.MinecraftServer.run(MinecraftSer

ver.java:426)

17:02:15 [sEVERE]      at net.minecraft.server.ThreadServerApplication.run(Sour

ceFile:492)

17:02:15 [sEVERE] Unexpected exception

java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Un

supported major.minor version 51.0

        at java.lang.ClassLoader.defineClass1(Native Method)

        at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)

        at java.lang.ClassLoader.defineClass(ClassLoader.java:615)

        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14

1)

        at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

        at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:295)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

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

        at java.lang.Class.forName(Class.java:247)

        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)

>

How do i fix this? I want the nether ores mod, i don't want to delete it.

[Jay?]

Update to java 7, that should fix it.

[sincerecorn]

i am running java 7 i also have java 6 installed too. Is that a problem?

[Jay?]

Yes. It's likely that your installation is trying to use Java 6, despite Java 7 being available to it.

[sincerecorn]

yup, that was the problem. Don't get me wrong, I code java sometimes. I knew what the major minor version thing was. But I didn't know sometimes things don't use the latest java, even when installed.

[Jay?]

Yeah, it has to do with how java changes between major versions. It actually makes a new path in the java folder, which can trick a lot of programs into not updating the path, since there's nothing wrong with the old path.