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Netherore Not Compatible/Working/Or something....


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Title: Netherore Not Compatible/Working/Or something....

Version: 3.1.2

OS: OS: Mac OSX 10.7.5/CPU: 2.4 GHz Intel Core 2 Duo i5 8GB 1333 MHz RAM Macbook Pro 8,1

Java Version: Java SE 7 Update 09/Java Architecture: 64-bit

Description of Problem:

I have no plugins installed. The only problem is, netherore is not working. When i launch, it just creates all these errors, and the server just crashes there. I removed netherore and it worked. But the problem is i need netherore and it is crucial to my server.

Error Messages:

21:24:12 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar is located in your mods directory

21:24:12 [sEVERE] cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

21:24:12 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:436)

21:24:12 [sEVERE] at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

21:24:12 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134)

21:24:12 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135)

21:24:12 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

21:24:12 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

21:24:12 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

21:24:12 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527)

21:24:12 [sEVERE] at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

21:24:12 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:419)

21:24:12 [sEVERE] ... 5 more

21:24:12 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

21:24:12 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method)

21:24:12 [sEVERE] at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)

21:24:12 [sEVERE] at java.lang.ClassLoader.defineClass(ClassLoader.java:615)

21:24:12 [sEVERE] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

21:24:12 [sEVERE] at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

21:24:12 [sEVERE] at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

21:24:12 [sEVERE] at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

21:24:12 [sEVERE] at java.security.AccessController.doPrivileged(Native Method)

21:24:12 [sEVERE] at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

21:24:12 [sEVERE] at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

21:24:12 [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

21:24:12 [sEVERE] at java.lang.ClassLoader.loadClass(ClassLoader.java:295)

21:24:12 [sEVERE] at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

21:24:12 [sEVERE] at java.lang.Class.forName0(Native Method)

21:24:12 [sEVERE] at java.lang.Class.forName(Class.java:247)

21:24:12 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494)

21:24:12 [sEVERE] ... 7 more

21:24:12 [sEVERE] Unexpected exception

cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

at cpw.mods.fml.common.Loader.load(Loader.java:436)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

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

Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

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

at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

at cpw.mods.fml.common.Loader.load(Loader.java:419)

... 5 more

Caused by: 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.defineClassCond(ClassLoader.java:631)

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

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

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:494)

... 7 more

Error Log:


21:24:12 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar is located in your mods directory

21:24:12 [sEVERE] cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

21:24:12 [sEVERE] 	at cpw.mods.fml.common.Loader.load(Loader.java:436)

21:24:12 [sEVERE] 	at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

21:24:12 [sEVERE] 	at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134)

21:24:12 [sEVERE] 	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135)

21:24:12 [sEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

21:24:12 [sEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

21:24:12 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

21:24:12 [sEVERE] 	at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527)

21:24:12 [sEVERE] 	at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

21:24:12 [sEVERE] 	at cpw.mods.fml.common.Loader.load(Loader.java:419)

21:24:12 [sEVERE] 	... 5 more

21:24:12 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

21:24:12 [sEVERE] 	at java.lang.ClassLoader.defineClass1(Native Method)

21:24:12 [sEVERE] 	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)

21:24:12 [sEVERE] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:615)

21:24:12 [sEVERE] 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

21:24:12 [sEVERE] 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)

21:24:12 [sEVERE] 	at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

21:24:12 [sEVERE] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:197)

21:24:12 [sEVERE] 	at java.security.AccessController.doPrivileged(Native Method)

21:24:12 [sEVERE] 	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

21:24:12 [sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

21:24:12 [sEVERE] 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

21:24:12 [sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:295)

21:24:12 [sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

21:24:12 [sEVERE] 	at java.lang.Class.forName0(Native Method)

21:24:12 [sEVERE] 	at java.lang.Class.forName(Class.java:247)

21:24:12 [sEVERE] 	at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494)

21:24:12 [sEVERE] 	... 7 more

21:24:12 [sEVERE] Unexpected exception

cpw.mods.fml.common.LoaderException: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

	at cpw.mods.fml.common.Loader.load(Loader.java:436)

	at cpw.mods.fml.common.Loader.loadMods(Loader.java:606)

	at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134)

	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135)

	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

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

Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

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

	at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562)

	at cpw.mods.fml.common.Loader.load(Loader.java:419)

	... 5 more

Caused by: 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.defineClassCond(ClassLoader.java:631)

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

	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)

	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:494)

	... 7 more

3 answers to this question

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Posted

Although, you say you have Java 7, maybe you have more than one Java version and the wrong version is being used for tekkit server.

I got that error in Linux when using openjdk-6 unless I disabled nether ores (by renaming mod_NetherOres.jar to different file extension). After removing openjdk-6 and installing openjdk-7 and renaming that mod back to a .jar, everything worked (including client). I am sure that I have seen posts related to Mac about getting tekkit server working with Java 7 and client with Java 6 (not sure why Java 7 would break Mac client).

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