---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 29-12-14 22:43
Description: Unexpected error

java.lang.IllegalArgumentException: Cannot set property bet{name=variant, clazz=class ayu, values=[acacia, dark_oak]} to oak on block minecraft:log2, it is not an allowed value
	at bee.a(SourceFile:124)
	at ayf.a(SourceFile:54)
	at ato.a(SourceFile:686)
	at axk.a(SourceFile:51)
	at ajr.a(SourceFile:54)
	at amg.a(SourceFile:127)
	at cel.a(SourceFile:310)
	at bss.av(SourceFile:1358)
	at bss.r(SourceFile:1794)
	at bss.at(SourceFile:880)
	at bss.a(SourceFile:317)
	at net.minecraft.client.main.Main.main(SourceFile:124)


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

-- Head --
Stacktrace:
	at bee.a(SourceFile:124)
	at ayf.a(SourceFile:54)
	at ato.a(SourceFile:686)
	at axk.a(SourceFile:51)
	at ajr.a(SourceFile:54)
	at amg.a(SourceFile:127)
	at cel.a(SourceFile:310)
	at bss.av(SourceFile:1358)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [cin['martmists'/3809995, l='MpServer', x=0,42, y=100,00, z=-599,42]]
	Chunk stats: MultiplayerChunkCache: 81, 81
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: 0,00,201,00,-600,00 - World: (0,201,-600), Chunk: (at 0,12,8 in 0,-38; contains blocks 0,0,-608 to 15,255,-593), Region: (0,-2; contains chunks 0,-64 to 31,-33, blocks 0,0,-1024 to 511,255,-513)
	Level time: 279670 game time, 1 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: adventure (ID 2). Hardcore: false. Cheats: false
	Forced entities: 4 total; [cin['martmists'/3809995, l='MpServer', x=0,42, y=100,00, z=-599,42], cin['martmists'/3809995, l='MpServer', x=100,62, y=56,00, z=100,61], adj['Armor Stand'/3809994, l='MpServer', x=23,50, y=94,00, z=-605,50], cin['martmists'/3809995, l='MpServer', x=31,90, y=56,00, z=-633,71]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at cem.a(SourceFile:308)
	at bss.b(SourceFile:2278)
	at bss.a(SourceFile:331)
	at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
	Minecraft Version: 1.8.1-pre3
	Operating System: Windows 8.1 (x86) version 6.3
	Java Version: 1.8.0_05, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 272493872 bytes (259 MB) / 479141888 bytes (456 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 1.8.1-pre3
	LWJGL: 2.9.1
	OpenGL: GeForce GT 720M/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	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)