mod_NetherOres : Unsupported major.minor version 51.0

[chowchig]

Title: mod_NetherOres : Unsupported major.minor version 51.0

Version: 3.0.3/3.0.4

OS: Windows 7 64bit Operating system

Java Version: 1.7

Description of Problem:

I try and launch the server, when the window pops up it goes through the usual set up, when it gets to the mod_NetherOres it freezes the operation.

Error Messages:

mod_NetherOres : Unsupported major.minor version 51.0

Error Log:

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

2012-07-17 15:28:31 [sEVERE] 	at java.lang.ClassLoader.defineClass1(Native Method)

2012-07-17 15:28:31 [sEVERE] 	at java.lang.ClassLoader.defineClassCond(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.lang.ClassLoader.defineClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.security.SecureClassLoader.defineClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.net.URLClassLoader.defineClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.net.URLClassLoader.access$000(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.net.URLClassLoader$1.run(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.security.AccessController.doPrivileged(Native Method)

2012-07-17 15:28:31 [sEVERE] 	at java.net.URLClassLoader.findClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.lang.ClassLoader.loadClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.lang.ClassLoader.loadClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.lang.ClassLoader.loadClass(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at java.lang.Class.forName0(Native Method)

2012-07-17 15:28:31 [sEVERE] 	at java.lang.Class.forName(Unknown Source)

2012-07-17 15:28:31 [sEVERE] 	at cpw.mods.fml.common.Loader.loadModClass(Loader.java:440)

2012-07-17 15:28:31 [sEVERE] 	at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:497)

2012-07-17 15:28:31 [sEVERE] 	at cpw.mods.fml.common.Loader.load(Loader.java:375)

2012-07-17 15:28:31 [sEVERE] 	at cpw.mods.fml.common.Loader.loadMods(Loader.java:527)

2012-07-17 15:28:31 [sEVERE] 	at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113)

2012-07-17 15:28:31 [sEVERE] 	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118)

2012-07-17 15:28:31 [sEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)

2012-07-17 15:28:31 [sEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2012-07-17 15:28:31 [sEVERE] Unexpected exception

java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

[Torezu]

Did you somehow miss this thread? It's been there a long time, and the solution to this bug is always the same.

[chowchig]

Solution is to update to 1.7?

[chowchig]

If the solution is to update to 1.7 Java, you can see in my original post, that I stated that I have the java version 1.7

[Torezu]

Double-check that you don't have multiple versions of Java installed then, and that you have the correct bit version for your OS.

[chowchig]

Checked, 64bit java and only 1 version.

Last time when I had this error I replaced the Advanced Machines addon with a more updated one it worked fine, but I don't know how I would go about replacing this mod with a more updated version

[Torezu]

There is a new 1.1 (not MC) Bukkit port available. I'm not sure what version you have. Odd, though, my server's always used this just fine...

[chowchig]

Yeah, I've always had this problem with tekkit, though I only had it with the advanced machines.

Do you have a link to this port? Also, how would I go about disabling this mod, in case I cannot fix the problem

[chowchig]

Well, since I can't fix this. How would I disable this mod?

I just deleted it off the mods folder, I assume this won't affect anything?

[Torezu]

Just delete the mod .jar or .zip from the server \mods folder.

[Jay?]

Do me a flavor and stick your whole serverlog into pastebin.

[dave122345]

Well, since I can't fix this. How would I disable this mod?

I just deleted it off the mods folder, I assume this won't affect anything?

for some reason tekkit cant run with nether ores i had the same problam but i just deleted nether ores it then the launch worked fine