Server Error messages.

flightagressor · June 1, 2012

Launcher/pack Version: 2.1.1 Server

Operating System: Win XP Media Center Edition

Version of Java: Java 7 update 4

Description of Problem: When starting the server, a lot of mods fail to initialize or something of that sort. See errors and log.

Error Messages:

18:55:19 [FINE] Failed to load mod from &quot;mod_IC2AdvancedMachines.class&quot;

2012-05-31 18:55:19 [FINER] THROW

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(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)

2012-05-31 18:55:19 [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(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)

2012-05-31 18:55:19 [FINER] THROW

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(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

2012-05-31 18:55:19 [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(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

2012-05-31 18:55:19 [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(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: http://pastebin.com/p9CLhjd5

flightagressor · June 1, 2012

Fixed.

Fnykis · June 2, 2012

I got the exact same bad log.

Fixed.

Could you explain what you did to fix this?

Love

Spaulding13 · June 3, 2012

I got the exact same bad log.

Could you explain what you did to fix this?

Love

I second this. I'm having the same problem and still looking for a solution

kleptokat · June 3, 2012

http://forums.technicpack.net/index.php/topic,2834.0.html

here you go

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Server Error messages.

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flightagressor

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