Mysteroo

I just figured it out- that was the problem. I only had the 32 bit installed, once I installed both 32 and 64 both the server and launcher worked fine. And just having "java" instead of a path worked good too, thanks for the help!

Sorry for the double post, I input the path, this is what I got C:\Users\Joseph\Desktop\MCserver\Tekkit>C:\ProgramFiles(x86)\Java\jre7\bin\javaw .exe -Xmx3G -Xms2G -jar Tekkit.jar nogui 'C:\ProgramFiles' is not recognized as an internal or external command, operable program or batch file. C:\Users\Joseph\Desktop\MCserver\Tekkit>pause Press any key to continue . . . I get just about the same error if I have a space in between 'program' and 'files'- which is how it's supposed to be. I'm also getting that same error minecrafter was getting with the technic launcher, reinstalling java didn't work :c

arg, ok I'll try to figure it out somehow, thanks edit- so do I have to replace "java" with the path to the java exe?

I'm having the same problem, I uninstalled all 4 or 5 previous versions of java and then reinstalled the updated version, then I tried again and instead got C:UsersJosephDesktopMCserverTekkit>java -Xmx3G -Xms2G -jar Tekkit.jar nogui 'java' is not recognized as an intral or external command, operable program or batch file. C:IsersJosephDesktopMcserverTekkit>pause Press any key to continue

Title: Launch.Bat doesn't start a server Version: 3.1.2 OS: Windows 7 home premium Java Version: 6.0.290.11 Description of Problem: I just recently wanted to try out tekkit. I've been able to host servers fine before, I've port forwarded and everything. So I downloaded the launcher and the server, I started the launch.bat for the server but it never finishes. It gives some things which I assume to be errors and just stops. It doesn't say "press so and so to continue" or anything, it just doesn't do anything more. Error Messages: Error Log: 2012-08-31 17:20:35 [WARNING] Failed to load mod class net/minecraft/server/mod_NetherOres.class in C:UsersJosephDesktopMCserverTekkitmodsmod_NetherOres.jar 2012-08-31 17:20:35 [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) 2012-08-31 17:20:35 [sEVERE] Zip file mod_NetherOres.jar failed to read properly 2012-08-31 17:20:35 [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 2012-08-31 17:20:35 [iNFO] File mod_NetherOres.jar contained no mods 2012-08-31 17:20:36 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar is located in your mods directory 2012-08-31 17:20:36 [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 2012-08-31 17:20:36 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:436) 2012-08-31 17:20:36 [sEVERE] at cpw.mods.fml.common.Loader.loadMods(Loader.java:606) 2012-08-31 17:20:36 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134) 2012-08-31 17:20:36 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135) 2012-08-31 17:20:36 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438) 2012-08-31 17:20:36 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) 2012-08-31 17:20:36 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:20:36 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527) 2012-08-31 17:20:36 [sEVERE] at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562) 2012-08-31 17:20:36 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:419) 2012-08-31 17:20:36 [sEVERE] ... 5 more 2012-08-31 17:20:36 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:20:36 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method) 2012-08-31 17:20:36 [sEVERE] at java.lang.ClassLoader.defineClassCond(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.net.URLClassLoader.defineClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.net.URLClassLoader.access$000(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.security.AccessController.doPrivileged(Native Method) 2012-08-31 17:20:36 [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at java.lang.Class.forName0(Native Method) 2012-08-31 17:20:36 [sEVERE] at java.lang.Class.forName(Unknown Source) 2012-08-31 17:20:36 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494) 2012-08-31 17:20:36 [sEVERE] ... 7 more 2012-08-31 17:20:36 [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(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 2012-08-31 17:22:01 [WARNING] Failed to load mod class net/minecraft/server/mod_NetherOres.class in C:UsersJosephDesktopMCserverTekkitmodsmod_NetherOres.jar 2012-08-31 17:22:01 [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) 2012-08-31 17:22:01 [sEVERE] Zip file mod_NetherOres.jar failed to read properly 2012-08-31 17:22:01 [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 2012-08-31 17:22:01 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar is located in your mods directory 2012-08-31 17:22:01 [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 2012-08-31 17:22:01 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:436) 2012-08-31 17:22:01 [sEVERE] at cpw.mods.fml.common.Loader.loadMods(Loader.java:606) 2012-08-31 17:22:01 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134) 2012-08-31 17:22:01 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135) 2012-08-31 17:22:01 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438) 2012-08-31 17:22:01 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) 2012-08-31 17:22:01 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:22:01 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527) 2012-08-31 17:22:01 [sEVERE] at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562) 2012-08-31 17:22:01 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:419) 2012-08-31 17:22:01 [sEVERE] ... 5 more 2012-08-31 17:22:01 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:22:01 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method) 2012-08-31 17:22:01 [sEVERE] at java.lang.ClassLoader.defineClassCond(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.net.URLClassLoader.defineClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.net.URLClassLoader.access$000(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.security.AccessController.doPrivileged(Native Method) 2012-08-31 17:22:01 [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at java.lang.Class.forName0(Native Method) 2012-08-31 17:22:01 [sEVERE] at java.lang.Class.forName(Unknown Source) 2012-08-31 17:22:01 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494) 2012-08-31 17:22:01 [sEVERE] ... 7 more 2012-08-31 17:22:01 [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(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 2012-08-31 17:22:13 [WARNING] Failed to load mod class net/minecraft/server/mod_NetherOres.class in C:UsersJosephDesktopMCserverTekkitmodsmod_NetherOres.jar 2012-08-31 17:22:13 [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) 2012-08-31 17:22:13 [sEVERE] Zip file mod_NetherOres.jar failed to read properly 2012-08-31 17:22:13 [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 2012-08-31 17:22:13 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar is located in your mods directory 2012-08-31 17:22:13 [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 2012-08-31 17:22:13 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:436) 2012-08-31 17:22:13 [sEVERE] at cpw.mods.fml.common.Loader.loadMods(Loader.java:606) 2012-08-31 17:22:13 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134) 2012-08-31 17:22:13 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135) 2012-08-31 17:22:13 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438) 2012-08-31 17:22:13 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) 2012-08-31 17:22:13 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:22:13 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527) 2012-08-31 17:22:13 [sEVERE] at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562) 2012-08-31 17:22:13 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:419) 2012-08-31 17:22:13 [sEVERE] ... 5 more 2012-08-31 17:22:13 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:22:13 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method) 2012-08-31 17:22:13 [sEVERE] at java.lang.ClassLoader.defineClassCond(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.net.URLClassLoader.defineClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.net.URLClassLoader.access$000(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.security.AccessController.doPrivileged(Native Method) 2012-08-31 17:22:13 [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at java.lang.Class.forName0(Native Method) 2012-08-31 17:22:13 [sEVERE] at java.lang.Class.forName(Unknown Source) 2012-08-31 17:22:13 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494) 2012-08-31 17:22:13 [sEVERE] ... 7 more 2012-08-31 17:22:13 [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(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 ....................... //that's about the first half of the log, and it continued like that until the end vvvvvvv 2012-08-31 17:25:22 [sEVERE] A problem has occured during mod loading. Likely a corrupt jar is located in your mods directory 2012-08-31 17:25:22 [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 2012-08-31 17:25:22 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:436) 2012-08-31 17:25:22 [sEVERE] at cpw.mods.fml.common.Loader.loadMods(Loader.java:606) 2012-08-31 17:25:22 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:134) 2012-08-31 17:25:22 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:135) 2012-08-31 17:25:22 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438) 2012-08-31 17:25:22 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) 2012-08-31 17:25:22 [sEVERE] Caused by: cpw.mods.fml.common.LoaderException: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:25:22 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:527) 2012-08-31 17:25:22 [sEVERE] at cpw.mods.fml.common.Loader.attemptFileLoad(Loader.java:562) 2012-08-31 17:25:22 [sEVERE] at cpw.mods.fml.common.Loader.load(Loader.java:419) 2012-08-31 17:25:22 [sEVERE] ... 5 more 2012-08-31 17:25:22 [sEVERE] Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0 2012-08-31 17:25:22 [sEVERE] at java.lang.ClassLoader.defineClass1(Native Method) 2012-08-31 17:25:22 [sEVERE] at java.lang.ClassLoader.defineClassCond(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.lang.ClassLoader.defineClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.net.URLClassLoader.defineClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.net.URLClassLoader.access$000(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.net.URLClassLoader$1.run(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.security.AccessController.doPrivileged(Native Method) 2012-08-31 17:25:22 [sEVERE] at java.net.URLClassLoader.findClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at java.lang.Class.forName0(Native Method) 2012-08-31 17:25:22 [sEVERE] at java.lang.Class.forName(Unknown Source) 2012-08-31 17:25:22 [sEVERE] at cpw.mods.fml.common.Loader.loadModClass(Loader.java:494) 2012-08-31 17:25:22 [sEVERE] ... 7 more 2012-08-31 17:25:22 [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(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