Minecraft Forums

Hi!
I am having the same problem (single or multiplayer).
After to select “Create New World”, the Minecraft game stops in the screen “loading world - converting world”.


---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 17/10/12 13:29
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: xy
at vp.<init>(SourceFile:20)
at vp.<init>(SourceFile:30)
at ady.a(SourceFile:136)
at net.minecraft.server.MinecraftServer.c(SourceFile:107)
at axv.a(SourceFile:49)
at axv.b(SourceFile:94)
at net.minecraft.server.MinecraftServer.run(SourceFile:291)
at ep.run(SourceFile:539)
Caused by: java.lang.ClassNotFoundException: xy
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 8 more

Relevant Details:
- Minecraft Version: 1.3.2
- Operating System: Mac OS X (x86_64) version 10.8.2
- Java Version: 1.6.0_37, Apple Inc.
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
- Memory: 532805184 bytes (508 MB) / 581435392 bytes (554 MB) up to 1065025536 bytes (1015 MB)
- JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms512M -Xmx1024M
- Is Modded: Probably not
- Profiler Position: N/A (disabled)
- Player Count: 0 / 8; []
- Type: Integrated Server