Hopper: java.lang.ArrayIndexOutOfBoundsException: 4 (Broken resource pack)

java.lang.ArrayIndexOutOfBoundsException: 4
	at bpj.a(SourceFile:78)

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 10/11/13 3:38 PM
Description: Generating mipmaps for frame

java.lang.ArrayIndexOutOfBoundsException: 4
	at bpj.a(SourceFile:78)
	at bpe.d(SourceFile:247)
	at bpa.b(SourceFile:165)
	at bpa.a(SourceFile:90)
	at bpg.a(SourceFile:72)
	at bpg.a(SourceFile:136)
	at bqg.c(SourceFile:104)
	at bqg.a(SourceFile:92)
	at ayp.b(SourceFile:490)
	at bfp.a(SourceFile:151)
	at bbp.a(SourceFile:172)
	at bfp.a(SourceFile:158)
	at bbp.d(SourceFile:236)
	at bbp.k(SourceFile:211)
	at ayp.o(SourceFile:1303)
	at ayp.ab(SourceFile:755)
	at ayp.e(SourceFile:706)
	at net.minecraft.client.main.Main.main(SourceFile:103)


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

-- Head --
Stacktrace:
	at bpj.a(SourceFile:78)

-- Frame being iterated --
Details:
	Frame index: 0
	Frame sizes: 4, null, null, null, null
Stacktrace:
	at bpe.d(SourceFile:247)

-- Sprite being mipmapped --
Details:
	Sprite name: grass_top
	Sprite size: 2 x 2
	Sprite frames: 1 frames
	Mipmap levels: 1
Stacktrace:
	at bpa.b(SourceFile:165)
	at bpa.a(SourceFile:90)

-- Resource location being registered --
Details:
	Resource location: minecraft:textures/atlas/blocks.png
	Texture object class: bpa
Stacktrace:
	at bpg.a(SourceFile:72)
	at bpg.a(SourceFile:136)
	at bqg.c(SourceFile:104)
	at bqg.a(SourceFile:92)
	at ayp.b(SourceFile:490)
	at bfp.a(SourceFile:151)
	at bbp.a(SourceFile:172)
	at bfp.a(SourceFile:158)
	at bbp.d(SourceFile:236)
	at bbp.k(SourceFile:211)

-- Affected screen --
Details:
	Screen name: bfp
Stacktrace:
	at ayp.o(SourceFile:1303)
	at ayp.ab(SourceFile:755)
	at ayp.e(SourceFile:706)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w41b
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_40, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 124930280 bytes (119 MB) / 288358400 bytes (275 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 13w41b
	LWJGL: 2.9.0
	OpenGL: GeForce GT 650M/PCIe/SSE2 GL version 4.3.0, NVIDIA Corporation
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: [Checkerboard]
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
	Anisotropic Filtering: Off (1)