Hopper: java.lang.NullPointerException acc.<init>(SourceFile:90)

java.lang.NullPointerException
	at acc.<init>(SourceFile:90)
	at ats.a(SourceFile:1426)
	at awe.e(SourceFile:157)
	at awf.a(SourceFile:210)
	at awd.a(SourceFile:173)
	at awe.a(SourceFile:183)

---- Minecraft Crash Report ----
// I feel sad now :(

Time: 8/2/13 7:10 AM
Description: Rendering screen

java.lang.NullPointerException
	at acc.<init>(SourceFile:90)
	at ats.a(SourceFile:1426)
	at awe.e(SourceFile:157)
	at awf.a(SourceFile:210)
	at awd.a(SourceFile:173)
	at awe.a(SourceFile:183)
	at bfb.b(SourceFile:718)
	at ats.S(SourceFile:686)
	at ats.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)


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

-- Head --
Stacktrace:
	at acc.<init>(SourceFile:90)
	at ats.a(SourceFile:1426)
	at awe.e(SourceFile:157)
	at awf.a(SourceFile:210)
	at awd.a(SourceFile:173)
	at awe.a(SourceFile:183)

-- Screen render details --
Details:
	Screen name: blq
	Mouse location: Scaled: (150, 46). Absolute: (301, 386)
	Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2
Stacktrace:
	at bfb.b(SourceFile:718)
	at ats.S(SourceFile:686)
	at ats.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.2
	Operating System: Windows XP (x86) version 5.1
	Java Version: 1.7.0_21, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 217600736 bytes (207 MB) / 371855360 bytes (354 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
	Launched Version: 1.6.2
	LWJGL: 2.9.0
	OpenGL: RADEON 9200 Series DDR x86/SSE2 GL version 1.3.4955 WinXP Release, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: Default
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null