Hopper: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.RangeCheck(ArrayList.java:547)
	at java.util.ArrayList.get(ArrayList.java:322)
	at auw.y_(SourceFile:194)
	at auw.a(SourceFile:67)
	at awe.n(SourceFile:149)
	at awe.m(SourceFile:111)

---- Minecraft Crash Report ----
// Why did you do that?

Time: 9/20/13 8:35 AM
Description: Updating screen events

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.RangeCheck(ArrayList.java:547)
	at java.util.ArrayList.get(ArrayList.java:322)
	at auw.y_(SourceFile:194)
	at auw.a(SourceFile:67)
	at awe.n(SourceFile:149)
	at awe.m(SourceFile:111)
	at atv.k(SourceFile:1158)
	at atv.S(SourceFile:663)
	at atv.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 java.util.ArrayList.RangeCheck(ArrayList.java:547)
	at java.util.ArrayList.get(ArrayList.java:322)
	at auw.y_(SourceFile:194)
	at auw.a(SourceFile:67)
	at awe.n(SourceFile:149)
	at awe.m(SourceFile:111)

-- Affected screen --
Details:
	Screen name: auw

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdi['bluecat007'/346, l='MpServer', x=20.76, y=72.62, z=-259.43]]
	Chunk stats: MultiplayerChunkCache: 441
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (110,64,259), Chunk: (at 14,4,3 in 6,16; contains blocks 96,0,256 to 111,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 12099 game time, 12099 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 51 total; [rq['Chicken'/23841, l='MpServer', x=-46.50, y=75.00, z=-194.50], rq['Chicken'/23840, l='MpServer', x=-45.50, y=74.00, z=-197.50], rq['Chicken'/23843, l='MpServer', x=-45.56, y=74.00, z=-200.41], rq['Chicken'/23842, l='MpServer', x=-47.50, y=75.00, z=-191.50], ro['Bat'/24048, l='MpServer', x=9.25, y=25.10, z=-318.25], rs['Horse'/23600, l='MpServer', x=24.50, y=71.00, z=-265.13], rs['Horse'/23601, l='MpServer', x=48.50, y=70.00, z=-335.00], rs['Horse'/23599, l='MpServer', x=67.22, y=71.00, z=-331.59], rs['Horse'/23598, l='MpServer', x=68.13, y=71.00, z=-329.37], rq['Chicken'/23597, l='MpServer', x=18.50, y=63.00, z=-333.50], rq['Chicken'/23596, l='MpServer', x=17.47, y=63.00, z=-336.53], rq['Chicken'/23595, l='MpServer', x=18.50, y=63.00, z=-339.50], rq['Chicken'/23594, l='MpServer', x=21.34, y=64.00, z=-335.31], rq['Chicken'/23565, l='MpServer', x=54.44, y=69.00, z=-303.56], rq['Chicken'/23564, l='MpServer', x=49.97, y=70.00, z=-335.69], rq['Chicken'/23560, l='MpServer', x=-35.50, y=72.00, z=-181.50], rq['Chicken'/23563, l='MpServer', x=30.56, y=67.00, z=-320.41], rq['Chicken'/23562, l='MpServer', x=18.53, y=66.00, z=-317.66], ry['Pig'/23557, l='MpServer', x=-24.50, y=63.00, z=-303.50], ry['Pig'/23556, l='MpServer', x=-25.50, y=63.00, z=-301.50], rq['Chicken'/23559, l='MpServer', x=-35.50, y=72.00, z=-181.50], rq['Chicken'/23558, l='MpServer', x=-32.50, y=71.00, z=-183.50], ry['Pig'/23555, l='MpServer', x=-27.50, y=63.00, z=-300.50], ry['Pig'/23554, l='MpServer', x=-29.44, y=63.00, z=-305.78], bdi['bluecat007'/346, l='MpServer', x=20.76, y=72.62, z=-259.43], ro['Bat'/25661, l='MpServer', x=-39.04, y=28.21, z=-276.75], ro['Bat'/25663, l='MpServer', x=-37.51, y=31.35, z=-271.34], ro['Bat'/25662, l='MpServer', x=-30.85, y=28.34, z=-286.58], ro['Bat'/24560, l='MpServer', x=13.52, y=35.00, z=-249.38], ro['Bat'/24454, l='MpServer', x=1.53, y=29.00, z=-315.02], ro['Bat'/24452, l='MpServer', x=9.27, y=30.11, z=-310.02], ro['Bat'/25666, l='MpServer', x=-46.96, y=29.31, z=-276.20], ss['item.item.seeds'/24498, l='MpServer', x=53.53, y=63.13, z=-278.72], ro['Bat'/24303, l='MpServer', x=-25.72, y=24.10, z=-289.22], bey['4444abc'/1108, l='MpServer', x=73.59, y=71.00, z=185.31], ro['Bat'/24770, l='MpServer', x=43.22, y=35.10, z=-203.56], ro['Bat'/24769, l='MpServer', x=41.99, y=34.83, z=-204.22], ro['Bat'/24768, l='MpServer', x=65.35, y=35.86, z=-218.52], ro['Bat'/24822, l='MpServer', x=-13.33, y=25.19, z=-306.59], ro['Bat'/24715, l='MpServer', x=4.93, y=49.05, z=-296.58], ro['Bat'/24767, l='MpServer', x=18.67, y=43.00, z=-294.97], rq['Chicken'/23470, l='MpServer', x=-31.50, y=71.00, z=-183.50], ro['Bat'/24616, l='MpServer', x=-18.58, y=38.00, z=-228.20], ro['Bat'/24618, l='MpServer', x=-28.28, y=50.58, z=-224.73], ro['Bat'/24996, l='MpServer', x=-8.41, y=20.10, z=-304.74], rq['Chicken'/21031, l='MpServer', x=77.50, y=67.00, z=-198.50], rq['Chicken'/21030, l='MpServer', x=71.56, y=70.00, z=-204.41], rq['Chicken'/21033, l='MpServer', x=75.84, y=69.00, z=-196.41], rq['Chicken'/21032, l='MpServer', x=77.50, y=67.00, z=-197.50], ro['Bat'/24958, l='MpServer', x=-13.13, y=21.37, z=-281.38], ro['Bat'/24941, l='MpServer', x=40.16, y=16.79, z=-238.51]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bdd.a(SourceFile:284)
	at atv.b(SourceFile:1761)
	at atv.d(SourceFile:628)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Mac OS X (x86_64) version 10.6.8
	Java Version: 1.6.0_51, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 122586888 bytes (116 MB) / 443166720 bytes (422 MB) up to 1069416448 bytes (1019 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 5224 (292544 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	Launched Version: 1.6.4
	LWJGL: 2.9.0
	OpenGL: Intel GMA 950 OpenGL Engine GL version 1.4 APPLE-1.6.36, Intel 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: 1961 (109816 bytes; 0 MB) allocated, 13 (728 bytes; 0 MB) used