kexus

I just downloaded Tekkit 3.0.4, and extracted it to an empty folder. When I ran launch.bat, I got the following error message. 2012-06-01 20:35:15 [sEVERE] java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-06-01 20:35:15 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method) 2012-06-01 20:35:15 [sEVERE] at java.lang.ClassLoader.defineClassCond(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.net.URLClassLoader.defineClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.net.URLClassLoader.access$000(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.security.AccessController.doPrivileged(Native Method) 2012-06-01 20:35:15 [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at java.lang.Class.forName0(Native Method) 2012-06-01 20:35:15 [sEVERE] at java.lang.Class.forName(Unknown Source) 2012-06-01 20:35:15 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:440) 2012-06-01 20:35:15 [sEVERE] at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:497) 2012-06-01 20:35:15 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:375) 2012-06-01 20:35:15 [sEVERE] at cpw.mods.fml.common.Loader.loadMods(Loader.java:527) 2012-06-01 20:35:15 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113) 2012-06-01 20:35:15 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118) 2012-06-01 20:35:15 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426) 2012-06-01 20:35:15 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) 2012-06-01 20:35:15 [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.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: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) I followed the instructions about adding your java directory to the Path something or other, but I got the same error. When I deleted mod_NetherOres.jar the server started up fine. I imagine this is some common problem, since all I did was download and run the provided files, but I didn't see any already existing threads about it. So, does anyone know how to fix this? I can always just run the server without it, but I'd rather not.