Minecraft Forums

Whenever I try to play in something that isn't 1.7.2, my minecraft crashes right after it shows the Mojang Title! That's really all that is going on here, so there isn't much detail I can put into this.


Here is the Crash report for when I tried 1.5.2.

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

Minecraft has stopped running because it encountered a problem; Failed to start game

A full error report has been saved to C:\Users\Harry Shields\AppData\Roaming\.minecraft\crash-reports\crash-2014-01-06_20.51.19-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 d2ca87bc --------
Full report at:
C:\Users\Harry Shields\AppData\Roaming\.minecraft\crash-reports\crash-2014-01-06_20.51.19-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 1/6/14 8:51 PM

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_45, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 13399112 bytes (12 MB) / 42520576 bytes (40 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.9.0
OpenGL: AMD RADEON HD 6450 GL version 4.0.10243 Compatibility Profile Context, ATI Technologies Inc.
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

java.lang.NullPointerException
at java.io.Reader.<init>(Unknown Source)
at java.io.InputStreamReader.<init>(Unknown Source)
at bp.a(SourceFile:64)
at bp.a(SourceFile:100)
at net.minecraft.client.Minecraft.a(SourceFile:252)
at avv.a(SourceFile:56)
at net.minecraft.client.Minecraft.run(SourceFile:507)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT addd6fca ----------

Quote from AwesomeSpongebob

...

Hi,

I assume you are using the new Minecraft launcher to switch between versions.

When you get the crash, switch to your Development Console, copy everything, submit it to https://gist.github.com or pastie.org and give us the URL.

https://gist.github.com/AwesomeSpongebob/638987e2f6012b4e7848

I have removed them and it still doesn't work. I also downloaded the 64 bit java and still nothing. I removed all my versions and still wont work. I have removed forge and still nothing.