Dallandra

Title: NetherOres crashing on server start Version: 3.1.1 OS: Windows 7 Professional Java Version: 1.6.0_31 Description of Problem: The server can't load mod_NetherOres.jar, since it apparently doesn't contain any mods/that "unsupported major.minor version 51.0" bullshit keeps it from recognizing the mod. However, using the "Generate Nether Ores" port found here http://www.minecraftforum.net/topic/1210034-125sspsmpbukkit-generate-nether-ores-122-bugfixed-again/ works just fine after changing the block ID from 150 to 135. Error Messages: See Error Log. Error Log: 2012-08-02 13:56:13 [FINE] Found a mod class net.minecraft.server.mod_NetherOres in file mod_NetherOres.jar, attempting to load it 2012-08-02 13:56:13 [WARNING] Failed to load mod class net/minecraft/server/mod_NetherOres.class in D:ProgrammeMinecraftTekkitmodsmod_NetherOres.jar 2012-08-02 13:56:13 [FINER] THROW 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(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494) at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562) at cpw.mods.fml.common.Loader.load(Loader.java:419) 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) 2012-08-02 13:56:13 [sEVERE] Zip file mod_NetherOres.jar failed to read properly 2012-08-02 13:56:13 [FINER] THROW 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) 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: 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(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494) ... 7 more 2012-08-02 13:56:13 [iNFO] File mod_NetherOres.jar contained no mods