marcohensen Posted March 13, 2012 Posted March 13, 2012 Launcher/pack Version: 0.5.4.8 Operating System: mac osx lion 10.7 Version of Java: SE 6 Description of Problem: error from server.command for server starting Error Messages: >Failed to load mod from "mod_IC2AdvancedMachines.class" >java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247) at net.minecraft.server.ModLoader.addMod(ModLoader.java:172) at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929) at net.minecraft.server.ModLoader.init(ModLoader.java:683) at net.minecraft.server.ModLoader.Init(ModLoader.java:1357) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411) at net.minecraft.server.ThreadServerApplication.run(SourceFile:465) 09:22:07 [sEVERE] Unexpected exception java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247) at net.minecraft.server.ModLoader.addMod(ModLoader.java:172) at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929) at net.minecraft.server.ModLoader.init(ModLoader.java:683) at net.minecraft.server.ModLoader.Init(ModLoader.java:1357) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411) at net.minecraft.server.ThreadServerApplication.run(SourceFile:465) >java.lang.RuntimeException: Exception occured in ModLoader at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292) at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297) at net.minecraft.server.ModLoader.addMod(ModLoader.java:193) at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929) at net.minecraft.server.ModLoader.init(ModLoader.java:683) at net.minecraft.server.ModLoader.Init(ModLoader.java:1357) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411) at net.minecraft.server.ThreadServerApplication.run(SourceFile:465) Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247) at net.minecraft.server.ModLoader.addMod(ModLoader.java:172) ... 6 more 09:22:07 [sEVERE] Unexpected exception java.lang.RuntimeException: Exception occured in ModLoader at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292) at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297) at net.minecraft.server.ModLoader.addMod(ModLoader.java:193) at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929) at net.minecraft.server.ModLoader.init(ModLoader.java:683) at net.minecraft.server.ModLoader.Init(ModLoader.java:1357) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411) at net.minecraft.server.ThreadServerApplication.run(SourceFile:465) Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247) at net.minecraft.server.ModLoader.addMod(ModLoader.java:172) ... 6 more >java.lang.RuntimeException: ModLoader has failed to initialize. at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292) at net.minecraft.server.ModLoader.init(ModLoader.java:715) at net.minecraft.server.ModLoader.Init(ModLoader.java:1357) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411) at net.minecraft.server.ThreadServerApplication.run(SourceFile:465) Caused by: java.lang.RuntimeException: Exception occured in ModLoader at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292) at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297) at net.minecraft.server.ModLoader.addMod(ModLoader.java:193) at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929) at net.minecraft.server.ModLoader.init(ModLoader.java:683) ... 4 more Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247) at net.minecraft.server.ModLoader.addMod(ModLoader.java:172) ... 6 more 09:22:07 [sEVERE] Unexpected exception java.lang.RuntimeException: ModLoader has failed to initialize. at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292) at net.minecraft.server.ModLoader.init(ModLoader.java:715) at net.minecraft.server.ModLoader.Init(ModLoader.java:1357) at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411) at net.minecraft.server.ThreadServerApplication.run(SourceFile:465) Caused by: java.lang.RuntimeException: Exception occured in ModLoader at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292) at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297) at net.minecraft.server.ModLoader.addMod(ModLoader.java:193) at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929) at net.minecraft.server.ModLoader.init(ModLoader.java:683) ... 4 more Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247) at net.minecraft.server.ModLoader.addMod(ModLoader.java:172) ... 6 more
0 freakachu Posted March 13, 2012 Posted March 13, 2012 here's an error for you: you didn't look at the stickies. you're about the 5 millionth person to have this problem, and do exactly what you just did. I'm really baffled how you could read the bug report format sticky, but not the one that lists your exact error message right in the title.
Question
marcohensen
Launcher/pack Version: 0.5.4.8
Operating System: mac osx lion 10.7
Version of Java: SE 6
Description of Problem: error from server.command for server starting
Error Messages:
>Failed to load mod from "mod_IC2AdvancedMachines.class"
>java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)
at net.minecraft.server.ModLoader.init(ModLoader.java:683)
at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
09:22:07 [sEVERE] Unexpected exception
java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)
at net.minecraft.server.ModLoader.init(ModLoader.java:683)
at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
>java.lang.RuntimeException: Exception occured in ModLoader
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:193)
at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)
at net.minecraft.server.ModLoader.init(ModLoader.java:683)
at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
... 6 more
09:22:07 [sEVERE] Unexpected exception
java.lang.RuntimeException: Exception occured in ModLoader
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:193)
at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)
at net.minecraft.server.ModLoader.init(ModLoader.java:683)
at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
... 6 more
>java.lang.RuntimeException: ModLoader has failed to initialize.
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)
at net.minecraft.server.ModLoader.init(ModLoader.java:715)
at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.RuntimeException: Exception occured in ModLoader
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:193)
at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)
at net.minecraft.server.ModLoader.init(ModLoader.java:683)
... 4 more
Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
... 6 more
09:22:07 [sEVERE] Unexpected exception
java.lang.RuntimeException: ModLoader has failed to initialize.
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)
at net.minecraft.server.ModLoader.init(ModLoader.java:715)
at net.minecraft.server.ModLoader.Init(ModLoader.java:1357)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:102)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:411)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.RuntimeException: Exception occured in ModLoader
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1292)
at net.minecraft.server.ModLoader.ThrowException(ModLoader.java:1297)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:193)
at net.minecraft.server.ModLoader.readFromModFolder(ModLoader.java:929)
at net.minecraft.server.ModLoader.init(ModLoader.java:683)
... 4 more
Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : 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:247)
at net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
... 6 more
1 answer to this question
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