---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!

Time: 10/8/16 6:34 PM
Description: Ticking block entity

java.lang.IllegalArgumentException: Cannot get property att{name=facing, clazz=class cv, values=[down, up, north, south, west, east]} as it does not exist in ath{block=minecraft:air, properties=[]}
	at ath$a.c(SourceFile:166)
	at ata.j(SourceFile:102)
	at ata.a(SourceFile:92)
	at ata.f(SourceFile:110)
	at ata.F_(SourceFile:233)
	at ajn.k(SourceFile:1429)
	at ben.t(SourceFile:1649)
	at ben.av(SourceFile:967)
	at ben.a(SourceFile:395)
	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 --
Thread: Client thread
Stacktrace:
	at ath$a.c(SourceFile:166)
	at ata.j(SourceFile:102)
	at ata.a(SourceFile:92)
	at ata.f(SourceFile:110)
	at ata.F_(SourceFile:233)

-- Block entity being ticked --
Details:
	Name: minecraft:piston // ata
	Block type: ID #36 (tile.null // asz)
	Block data value: 0 / 0x0 / 0b0000
	Block location: World: (157,72,11), Chunk: (at 13,4,11 in 9,0; contains blocks 144,0,0 to 159,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Actual block type: ID #36 (tile.null // asz)
	Actual block data value: 8 / 0x8 / 0b1000
Stacktrace:
	at ajn.k(SourceFile:1429)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bpn['Shadd0w09'/0, l='MpServer', x=160.90, y=62.00, z=15.14]]
	Chunk stats: MultiplayerChunkCache: 1640, 1640
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (167,4,41), Chunk: (at 7,0,9 in 10,2; contains blocks 160,0,32 to 175,255,47), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 65731 game time, 102529 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: 2 total; [ze['Falling Block'/136818, l='MpServer', x=158.50, y=56.63, z=17.50], bpn['Shadd0w09'/0, l='MpServer', x=160.90, y=62.00, z=15.14]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bnl.a(SourceFile:365)
	at ben.b(SourceFile:2536)
	at ben.a(SourceFile:404)
	at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
	Minecraft Version: 16w40a
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 218429672 bytes (208 MB) / 499453952 bytes (476 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: 0, tallocated: 0
	Launched Version: 16w40a
	LWJGL: 2.9.4
	OpenGL: GeForce GTX 1080/PCIe/SSE2 GL version 4.5.0 NVIDIA 372.90, 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: Yes
	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)
	CPU: 4x AMD A10-7700K Radeon R7, 10 Compute Cores 4C+6G