java.lang.IllegalArgumentException: Biome ID is out of bounds: -1
	at afy.d(SourceFile:480)
	at agf.a(SourceFile:168)
	at agd.<init>(SourceFile:27)
	at agc.a(SourceFile:52)
	at agc.d(SourceFile:87)
	at agf.a(SourceFile:161)
	at agf.b(SourceFile:151)
	at aox.d(SourceFile:194)

---- Minecraft Crash Report ----
// Don't do that.

Time: 13-10-11 17:42
Description: Exception generating new chunk

java.lang.IllegalArgumentException: Biome ID is out of bounds: 49934
	at afy.d(SourceFile:480)
	at agf.a(SourceFile:168)
	at agd.<init>(SourceFile:27)
	at agc.a(SourceFile:52)
	at agc.d(SourceFile:87)
	at agf.a(SourceFile:161)
	at agf.b(SourceFile:151)
	at aox.d(SourceFile:194)
	at mb.c(SourceFile:78)
	at ma.<init>(SourceFile:31)
	at lz.a(SourceFile:212)
	at lz.a(SourceFile:249)
	at ky.a(SourceFile:156)
	at ky.c(SourceFile:207)
	at ky.a(SourceFile:101)
	at mu.c(SourceFile:89)
	at mu.a(SourceFile:54)
	at ek.a(SourceFile:148)
	at ml.c(SourceFile:134)
	at net.minecraft.server.MinecraftServer.u(SourceFile:529)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at brh.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kt.run(SourceFile:617)


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

-- Head --
Stacktrace:
	at afy.d(SourceFile:480)
	at agf.a(SourceFile:168)
	at agd.<init>(SourceFile:27)
	at agc.a(SourceFile:52)
	at agc.d(SourceFile:87)
	at agf.a(SourceFile:161)
	at agf.b(SourceFile:151)
	at aox.d(SourceFile:194)

-- Chunk to be generated --
Details:
	Location: -22,70
	Position hash: 304942677994
	Generator: RandomLevelSource
Stacktrace:
	at mb.c(SourceFile:78)
	at ma.<init>(SourceFile:31)
	at lz.a(SourceFile:212)
	at lz.a(SourceFile:249)
	at ky.a(SourceFile:156)
	at ky.c(SourceFile:207)
	at ky.a(SourceFile:101)
	at mu.c(SourceFile:89)
	at mu.a(SourceFile:54)
	at ek.a(SourceFile:148)

-- Ticking connection --
Details:
	Connection: ek@1d8f15e
Stacktrace:
	at ml.c(SourceFile:134)
	at net.minecraft.server.MinecraftServer.u(SourceFile:529)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at brh.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kt.run(SourceFile:617)

-- System Details --
Details:
	Minecraft Version: 13w41b
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 135141336 bytes (128 MB) / 259522560 bytes (247 MB) up to 259522560 bytes (247 MB)
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	AABB Pool Size: 2171 (121576 bytes; 0 MB) allocated, 2041 (114296 bytes; 0 MB) used
	IntCache: cache: 6, tcache: 45, allocated: 14, tallocated: 116
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 559 (31304 bytes; 0 MB) allocated, 559 (31304 bytes; 0 MB) used
	Player Count: 1 / 8; [mf['Bartvince05'/202, l='New World', x=-181,65, y=230,44, z=1239,10]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.