Description of Problem: When I run launch.bat, it starts the server and begins loading the mods, but when it gets to "mod_IC2AdvancedMachines.class" it throws an error and stops the server.
Error Messages:
Failed to load mod from "mod_IC2AdvancedMachines.class"
java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMac
ines : 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 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)
2:31:17 [sEVERE] Unexpected exception
ava.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMach
nes : 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 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)
aused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2A
vancedMachines : 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 net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
... 6 more
2:31:17 [sEVERE] Unexpected exception
ava.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)
aused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2A
vancedMachines : 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 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)
aused 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
aused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2A
vancedMachines : 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 net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
... 6 more
2:31:17 [sEVERE] Unexpected exception
ava.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)
aused 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
aused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2A
vancedMachines : 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 net.minecraft.server.ModLoader.addMod(ModLoader.java:172)
... 6 more
Link to pastebin of log: This is a server-side issue, so there isn't a log.
Question
merlinn
Launcher/pack Version: 0.5.4.9
Operating System: Windows Vista SP2
Version of Java: jdk1.6.0_25
Description of Problem: When I run launch.bat, it starts the server and begins loading the mods, but when it gets to "mod_IC2AdvancedMachines.class" it throws an error and stops the server.
Error Messages:
Link to pastebin of log: This is a server-side issue, so there isn't a log.
1 answer to this question
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