Minecraft Forums

i just played minecraft and when i load a level it doesn't load and this appears:---- Minecraft Crash Report ----
// Why did you do that?

Time: 5/29/13 2:37 PM
Description: Updating screen events

java.lang.VerifyError: (class: bjg, method: a signature: (Ljava/lang/String;Ljava/lang/String;JLaal;Ljava/lang/String;)V) Incompatible argument to function
at net.minecraft.client.Minecraft.a(SourceFile:1378)
at axu.e(SourceFile:166)
at axu.a(SourceFile:131)
at axr.a(SourceFile:72)
at axr.d(SourceFile:127)
at axr.m(SourceFile:111)
at net.minecraft.client.Minecraft.l(SourceFile:1078)
at net.minecraft.client.Minecraft.K(SourceFile:574)
at net.minecraft.client.Minecraft.run(SourceFile:526)
at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at net.minecraft.client.Minecraft.a(SourceFile:1378)
at axu.e(SourceFile:166)
at axu.a(SourceFile:131)
at axr.a(SourceFile:72)
at axr.d(SourceFile:127)
at axr.m(SourceFile:111)

-- Affected screen --
Details:
Screen name: bkf
Stacktrace:
at net.minecraft.client.Minecraft.l(SourceFile:1078)
at net.minecraft.client.Minecraft.K(SourceFile:574)
at net.minecraft.client.Minecraft.run(SourceFile:526)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_21, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 481364928 bytes (459 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: Config, VersionCheckThread, VertexData, ...]
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.4.2
OpenGL: AMD RADEON HD 6450 GL version 4.1.10666 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

I have no idea what u just said, but you may want to use magiclauncher you can search for it on the forums
its al alternate mc launcher that starts your mc with less ram as well as has a modding api
you pretty much instal mods with one click, i installed Opti-fine and minimap with it, you should really consider it

HOPE THIS HELPS!

You've got me, never seen that error before and the crash report isn't giving me much of any hints about it either.

java.lang.VerifyError: (class: bjg, method: a signature: (Ljava/lang/String;Ljava/lang/String;JLaal;Ljava/lang/String;)V) Incompatible argument to function

All I get is that the bjg class file is trying to give a command in an invalid format to Java that it can't make any sense of.

You need to post a new thread in the proper forum for this which is the modded client support forum...

http://www.minecraftforum.net/forum/196-modded-client-support/

Hopefully someone else there will know what this means and what you can do to fix it.