java.lang.IllegalArgumentException: Modifier name cannot be empty
	at org.apache.commons.lang3.Validate.notEmpty(Validate.java:398)
	at rm.<init>(SourceFile:29)
	at wm.a(SourceFile:94)
	at abg.D(SourceFile:594)
	at abg.a(SourceFile:482)
	at bbp.a(SourceFile:76)
	at bcp.a(SourceFile:166)

---- Minecraft Crash Report ----
// I just don't know what went wrong :(

Time: 10/11/13 3:29 PM
Description: Rendering screen

java.lang.IllegalArgumentException: Modifier name cannot be empty
	at org.apache.commons.lang3.Validate.notEmpty(Validate.java:398)
	at rm.<init>(SourceFile:29)
	at wm.a(SourceFile:94)
	at abg.D(SourceFile:594)
	at abg.a(SourceFile:482)
	at bbp.a(SourceFile:76)
	at bcp.a(SourceFile:166)
	at bkr.b(SourceFile:851)
	at ayp.ab(SourceFile:783)
	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 org.apache.commons.lang3.Validate.notEmpty(Validate.java:398)
	at rm.<init>(SourceFile:29)
	at wm.a(SourceFile:94)
	at abg.D(SourceFile:594)
	at abg.a(SourceFile:482)
	at bbp.a(SourceFile:76)
	at bcp.a(SourceFile:166)

-- Screen render details --
Details:
	Screen name: bda
	Mouse location: Scaled: (147, 72). Absolute: (443, 532)
	Screen size: Scaled: (427, 250). Absolute: (1280, 750). Scale factor of 3

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bil['CAR600000'/100, l='MpServer', x=117.76, y=5.62, z=775.46]]
	Chunk stats: MultiplayerChunkCache: 225, 225
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (71,4,721), Chunk: (at 7,0,1 in 4,45; contains blocks 64,0,720 to 79,255,735), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)
	Level time: 57304 game time, 44740 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: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 52 total; [vn['item.item.slimeball'/68, l='MpServer', x=120.88, y=4.13, z=795.63], vn['item.item.slimeball'/69, l='MpServer', x=119.88, y=4.13, z=796.34], wy['Villager'/70, l='MpServer', x=117.53, y=4.00, z=794.76], wy['Villager'/71, l='MpServer', x=113.09, y=5.00, z=794.31], wy['Villager'/64, l='MpServer', x=124.30, y=7.21, z=771.56], vn['item.item.rottenFlesh'/65, l='MpServer', x=127.72, y=4.13, z=789.88], vn['item.item.slimeball'/66, l='MpServer', x=126.06, y=4.13, z=788.91], vn['item.item.slimeball'/67, l='MpServer', x=125.28, y=4.13, z=789.88], wy['Villager'/76, l='MpServer', x=127.56, y=5.00, z=793.50], uw['Iron Golem'/77, l='MpServer', x=122.97, y=4.00, z=809.09], uw['Iron Golem'/78, l='MpServer', x=116.00, y=4.00, z=800.31], uh['Bat'/79, l='MpServer', x=123.25, y=7.10, z=813.81], wy['Villager'/72, l='MpServer', x=124.37, y=5.00, z=791.43], wy['Villager'/73, l='MpServer', x=122.50, y=5.00, z=791.84], wy['Villager'/74, l='MpServer', x=126.50, y=5.00, z=793.78], wy['Villager'/75, l='MpServer', x=123.94, y=5.00, z=792.31], uw['Iron Golem'/85, l='MpServer', x=131.00, y=4.00, z=793.66], wy['Villager'/84, l='MpServer', x=128.70, y=5.00, z=794.70], uw['Iron Golem'/87, l='MpServer', x=138.01, y=4.00, z=788.48], wy['Villager'/86, l='MpServer', x=128.53, y=5.00, z=793.78], uh['Bat'/81, l='MpServer', x=125.25, y=7.10, z=825.75], uh['Bat'/80, l='MpServer', x=124.84, y=7.10, z=813.81], vn['item.item.slimeball'/83, l='MpServer', x=129.13, y=4.13, z=787.38], uh['Bat'/82, l='MpServer', x=119.25, y=5.00, z=834.56], ur['Pig'/95, l='MpServer', x=175.22, y=4.00, z=719.22], uh['Bat'/89, l='MpServer', x=136.38, y=8.10, z=803.50], vn['item.item.arrow'/88, l='MpServer', x=139.13, y=4.13, z=801.88], vn['item.item.slimeball'/90, l='MpServer', x=136.22, y=4.13, z=826.72], bil['CAR600000'/100, l='MpServer', x=117.76, y=5.62, z=775.46], uh['Bat'/32, l='MpServer', x=49.96, y=6.86, z=705.42], us['Sheep'/38, l='MpServer', x=62.97, y=4.00, z=819.94], ur['Pig'/98, l='MpServer', x=181.63, y=4.00, z=721.16], ur['Pig'/96, l='MpServer', x=175.94, y=4.00, z=726.22], us['Sheep'/37, l='MpServer', x=55.56, y=4.00, z=801.97], uk['Cow'/97, l='MpServer', x=163.88, y=4.00, z=752.91], us['Sheep'/46, l='MpServer', x=69.53, y=4.00, z=779.06], uu['Snow Golem'/44, l='MpServer', x=70.72, y=1.00, z=737.50], us['Sheep'/45, l='MpServer', x=70.03, y=4.00, z=765.06], uh['Bat'/51, l='MpServer', x=93.20, y=4.00, z=706.94], uh['Bat'/50, l='MpServer', x=79.66, y=2.06, z=706.54], uh['Bat'/49, l='MpServer', x=88.25, y=4.00, z=695.50], uk['Cow'/54, l='MpServer', x=82.16, y=4.00, z=774.16], uh['Bat'/53, l='MpServer', x=93.19, y=6.10, z=779.50], uh['Bat'/52, l='MpServer', x=94.25, y=7.10, z=777.25], wy['Villager'/59, l='MpServer', x=111.94, y=6.00, z=800.69], uw['Iron Golem'/58, l='MpServer', x=113.30, y=4.88, z=792.19], uh['Bat'/57, l='MpServer', x=102.85, y=4.64, z=763.92], uk['Cow'/56, l='MpServer', x=103.50, y=4.00, z=774.75], vn['item.item.rottenFlesh'/63, l='MpServer', x=117.88, y=5.13, z=771.34], vn['item.item.rottenFlesh'/62, l='MpServer', x=118.88, y=4.13, z=769.88], vn['item.item.slimeball'/61, l='MpServer', x=126.63, y=4.13, z=775.75], uk['Cow'/60, l='MpServer', x=115.19, y=4.00, z=729.94]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at big.a(SourceFile:302)
	at ayp.b(SourceFile:1935)
	at ayp.e(SourceFile:715)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w41b
	Operating System: Windows Vista (x86) version 6.0
	Java Version: 1.7.0_09, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 41869120 bytes (39 MB) / 124555264 bytes (118 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 9254 (518224 bytes; 0 MB) allocated, 783 (43848 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 13w41b
	LWJGL: 2.9.0
	OpenGL: Mobile Intel(R) 4 Series Express Chipset Family GL version 2.1.0 - Build 8.15.10.2202, Intel
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 869 (48664 bytes; 0 MB) allocated, 166 (9296 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)