Hopper: java.lang.NullPointerException

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-294085/

Crash:

java.lang.NullPointerException
	at bbr.a(SourceFile:76)
	at bdp.a(SourceFile:165)

The following is the first clean report made public about this crash:

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 10/10/13 20:15
Description: Rendering screen

java.lang.NullPointerException
	at bbr.a(SourceFile:76)
	at bdp.a(SourceFile:165)
	at bkv.b(SourceFile:851)
	at ays.ab(SourceFile:783)
	at ays.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 bbr.a(SourceFile:76)
	at bdp.a(SourceFile:165)

-- Screen render details --
Details:
	Screen name: bdp
	Mouse location: Scaled: (372, 133). Absolute: (745, 439)
	Screen size: Scaled: (683, 353). Absolute: (1366, 705). Scale factor of 2

-- Affected level --
Details:
	Level name: MpServer
	All players: 2 total; [bip['kenx00x'/2, l='MpServer', x=-1221,99, y=18,56, z=-1368,41], bko['Dinnerbone'/7, l='MpServer', x=-1224,41, y=16,77, z=-1373,96]]
	Chunk stats: MultiplayerChunkCache: 272, 272
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-1223,4,-1341), Chunk: (at 9,0,3 in -77,-84; contains blocks -1232,0,-1344 to -1217,255,-1329), Region: (-3,-3; contains chunks -96,-96 to -65,-65, blocks -1536,0,-1536 to -1025,255,-1025)
	Level time: 39091 game time, 39091 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: 11 total; [bko['Dinnerbone'/7, l='MpServer', x=-1224,41, y=16,77, z=-1373,96], bko['Dinnerbone'/7, l='MpServer', x=-1219,25, y=14,03, z=-1364,09], xb['Villager'/5333, l='MpServer', x=-1223,31, y=15,00, z=-1372,69], xb['Villager'/5335, l='MpServer', x=-1222,84, y=17,00, z=-1364,78], xb['Villager'/5334, l='MpServer', x=-1223,59, y=16,00, z=-1371,72], xb['Villager'/5337, l='MpServer', x=-1224,00, y=17,00, z=-1366,00], xb['Villager'/5336, l='MpServer', x=-1220,66, y=16,00, z=-1362,66], bko['Dinnerbone'/7, l='MpServer', x=-1224,41, y=16,77, z=-1373,96], bko['Dinnerbone'/7, l='MpServer', x=-1219,44, y=14,69, z=-1364,16], bip['kenx00x'/2, l='MpServer', x=-1221,99, y=18,56, z=-1368,41], bip['kenx00x'/2, l='MpServer', x=-1223,97, y=-137,28, z=-1370,12]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bik.a(SourceFile:302)
	at ays.b(SourceFile:1924)
	at ays.e(SourceFile:715)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w41a
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_40-ea, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 8076168 bytes (7 MB) / 164626432 bytes (157 MB) up to 954728448 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 544 (30464 bytes; 0 MB) allocated, 5 (280 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 13w41a
	LWJGL: 2.9.0
	OpenGL: Intel(R) HD Graphics 3000 GL version 3.1.0 - Build 9.17.10.3223, Intel
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (UK)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 270 (15120 bytes; 0 MB) allocated, 51 (2856 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-294085/16587758/