Minecraft Forums

Hello, minecraft keeps crashing I hope you guys can help me.

I had been working on a world for quite a while and decided to start modding, I copied my worlds save file in a separate folder so I wouldn't mess it up.

After the process didn't work I deleted minecraft and re downloaded to start clean.

I placed my worlds save file in the saves folder and attempted to play, here is the crash report:



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

Minecraft has stopped running because it encountered a problem; Updating screen events

A full error report has been saved to C:\Users\Aafes\AppData\Roaming\.minecraft\crash-reports\crash-2013-02-14_22.02.40-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT 2b80bfe6 --------
Full report at:
C:\Users\Aafes\AppData\Roaming\.minecraft\crash-reports\crash-2013-02-14_22.02.40-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 2/14/13 10:02 PM

-- Head --
Stacktrace:
at ahv.h(SaveHandler.java:78)
at ahv.<init>(SaveHandler.java:53)
at ahr.<init>(AnvilSaveHandler.java:16)
at ahs.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(Minecraft.java:1942)
at auo.e(SourceFile:157)
at auo.a(SourceFile:122)
at aul.a(SourceFile:72)
at aul.d(SourceFile:127)
at aul.m(SourceFile:111)

-- Affected screen --
Details:
Screen name: bey
Stacktrace:
at net.minecraft.client.Minecraft.l(Minecraft.java:1511)
at net.minecraft.client.Minecraft.J(Minecraft.java:846)
at net.minecraft.client.Minecraft.run(Minecraft.java:771)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_21, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 602182728 bytes (574 MB) / 648740864 bytes (618 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v7.26 FML v4.7.4.520 Minecraft Forge 6.6.0.497 5 mods loaded, 5 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
mod_TooManyItems [mod_TooManyItems] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FlansMod [Flan's Mod] (Flans Mod 2.1.1 for Minecraft 1.4.7 Universal.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
LWJGL: 2.4.2
OpenGL: Intel(R) G45/G43 Express Chipset GL version 2.1.0 - Build 8.15.10.2202, Intel
Is Modded: Definitely; Client brand changed to 'forge,fml'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

java.lang.RuntimeException: Failed to check session lock, aborting
at ahv.h(SaveHandler.java:78)
at ahv.<init>(SaveHandler.java:53)
at ahr.<init>(AnvilSaveHandler.java:16)
at ahs.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(Minecraft.java:1942)
at auo.e(SourceFile:157)
at auo.a(SourceFile:122)
at aul.a(SourceFile:72)
at aul.d(SourceFile:127)
at aul.m(SourceFile:111)
at net.minecraft.client.Minecraft.l(Minecraft.java:1511)
at net.minecraft.client.Minecraft.J(Minecraft.java:846)
at net.minecraft.client.Minecraft.run(Minecraft.java:771)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 9a5ae322 ----------






Any help is very much appreciated. I put alot into that world.

Quote from Lodingplzw8t

Hello, minecraft keeps crashing I hope you guys can help me.

I had been working on a world for quite a while and decided to start modding, I copied my worlds save file in a separate folder so I wouldn't mess it up.

After the process didn't work I deleted minecraft and re downloaded to start clean.

I placed my worlds save file in the saves folder and attempted to play, here is the crash report:



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

Minecraft has stopped running because it encountered a problem; Updating screen events

A full error report has been saved to C:\Users\Aafes\AppData\Roaming\.minecraft\crash-reports\crash-2013-02-14_22.02.40-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT 2b80bfe6 --------
Full report at:
C:\Users\Aafes\AppData\Roaming\.minecraft\crash-reports\crash-2013-02-14_22.02.40-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 2/14/13 10:02 PM

-- Head --
Stacktrace:
at ahv.h(SaveHandler.java:78)
at ahv.<init>(SaveHandler.java:53)
at ahr.<init>(AnvilSaveHandler.java:16)
at ahs.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(Minecraft.java:1942)
at auo.e(SourceFile:157)
at auo.a(SourceFile:122)
at aul.a(SourceFile:72)
at aul.d(SourceFile:127)
at aul.m(SourceFile:111)

-- Affected screen --
Details:
Screen name: bey
Stacktrace:
at net.minecraft.client.Minecraft.l(Minecraft.java:1511)
at net.minecraft.client.Minecraft.J(Minecraft.java:846)
at net.minecraft.client.Minecraft.run(Minecraft.java:771)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_21, Sun Microsystems Inc.
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 602182728 bytes (574 MB) / 648740864 bytes (618 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v7.26 FML v4.7.4.520 Minecraft Forge 6.6.0.497 5 mods loaded, 5 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
mod_TooManyItems [mod_TooManyItems] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FlansMod [Flan's Mod] (Flans Mod 2.1.1 for Minecraft 1.4.7 Universal.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
LWJGL: 2.4.2
OpenGL: Intel® G45/G43 Express Chipset GL version 2.1.0 - Build 8.15.10.2202, Intel
Is Modded: Definitely; Client brand changed to 'forge,fml'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

java.lang.RuntimeException: Failed to check session lock, aborting
at ahv.h(SaveHandler.java:78)
at ahv.<init>(SaveHandler.java:53)
at ahr.<init>(AnvilSaveHandler.java:16)
at ahs.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(Minecraft.java:1942)
at auo.e(SourceFile:157)
at auo.a(SourceFile:122)
at aul.a(SourceFile:72)
at aul.d(SourceFile:127)
at aul.m(SourceFile:111)
at net.minecraft.client.Minecraft.l(Minecraft.java:1511)
at net.minecraft.client.Minecraft.J(Minecraft.java:846)
at net.minecraft.client.Minecraft.run(Minecraft.java:771)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 9a5ae322 ----------






Any help is very much appreciated. I put alot into that world.

You are NOT running clean, you are still running off forge. Delete your mods folder, then force update. If that does not work, delete your .minecraft folder and reinstall minecraft.