Minecraft Forums

My main minecraft world will not load in 1.4. When I try to use it, it takes me back to the title screen.
Anyone got an idea on what to do?

Yeah it was working in 1.3 and I can open it with mcedit.
So I don't really know what's wrong.

It's still taking me back to the title screen when I try to load the world.
I also got the error message just now:

Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Exception in server tick loop
This error has been saved to C:\Documents and Settings\Ben\Application Data\.minecraft\crash-reports\crash-2012-10-28_18.07.23-server.txt for your convenience. Please include a copy of this file if you report this crash to anyone.



--- BEGIN ERROR REPORT ed910af5 --------
Generated 28/10/12 6:07 PM

- Minecraft Version: 1.4.2
- Operating System: Windows XP (x86) version 5.1
- Java Version: 1.7.0_07, Oracle Corporation
- Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
- Memory: 275930392 bytes (263 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
- JVM Flags: 2 total; -Xms512m -Xmx1024m
- AABB Pool Size: 411344 (23035264 bytes; 21 MB) allocated, 411344 (23035264 bytes; 21 MB) used
- Is Modded: Probably not
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: 8523 (477288 bytes; 0 MB) allocated, 8523 (477288 bytes; 0 MB) used
- Player Count: 0 / 8; []
- World Bens world Entities: 0 total; []
- World Bens world Players: 0 total; []
- World Bens world Chunk Stats: ServerChunkCache: 0 Drop: 0
- Type: Integrated Server

java.lang.NullPointerException
at bw.b(SourceFile:103)
at bw.a(SourceFile:35)
at im.b(SourceFile:457)
at ge.a(SourceFile:73)
at bce.b(SourceFile:72)
at net.minecraft.server.MinecraftServer.r(SourceFile:731)
at net.minecraft.server.MinecraftServer.q(SourceFile:661)
at bcb.q(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:595)
at fp.run(SourceFile:818)
--- END ERROR REPORT 3cd07baa ----------

my world is doing it to i had a problem not to yesterday fixed it and now my main world does the same thing its like it sits on "building terrain" for a while then goes to the title screen then after a few times it crashes and i get a report too.

i cant even run mcedit i duble click the application then two windows pop up quickly one of the windows looks like an editing window or like um bios configuration window but both windows are only a flash.

i honestly dont know much about anything or what im doing wrong. I hate wasting peoples time because i cant even do basics but i would really hate to lose this world i have worked so hard on it. im going to keep the files till i figure it out.