Here is the crash report:
---- Minecraft Crash Report ----
//
Time: 12/02/14 15:59
Description: Initializing game
java.lang.NullPointerException
at bkd.b(SourceFile:76)
at atv.O(SourceFile:332)
at atv.d(SourceFile:599)
at net.minecraft.client.main.Main.main(Sour…
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------…
-- Head --
Stacktrace:
at bkd.b(SourceFile:76)
at atv.O(SourceFile:332)
-- Initialization --
Details:
Stacktrace:
at atv.d(SourceFile:599)
at net.minecraft.client.main.Main.main(Sour…
-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 47430304 bytes (45 MB) / 90177536 bytes (86 MB) up to 954728448 bytes (910 MB)
JVM Flags: 2 total; -XX: HeapDumpPath=MojangTricksIntelDriver… -Xmx1G
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
Launched Version: 1.6.4
LWJGL: 2.9.0
OpenGL: AMD Radeon HD 7310M GL version 4.2.12002 Compatibility Profile Context 9.12.0.0, ATI Technologies Inc.
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Resource Pack: Default
Current Language: ~~ERROR~~ NullPointerException: null
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null