Hopper: java.lang.IllegalArgumentException: Cannot get property ben{name=half, clazz=class auz, values=[upper, lower]} as it does not exist in bdw{block=minec

java.lang.IllegalArgumentException: Cannot get property ben{name=half, clazz=class auz, values=[upper, lower]} as it does not exist in bdw{block=minecraft:air, properties=[]}
	at bdz.b(SourceFile:112)
	at auy.a(SourceFile:146)
	at zq.d(SourceFile:29)
	at yz.a(SourceFile:85)
	at xl.bG(SourceFile:457)
	at xk.l(SourceFile:1428)
	at xl.l(SourceFile:327)
	at wq.l(SourceFile:126)
	at xk.j(SourceFile:1296)
	at xl.j(SourceFile:199)
	at aqn.a(SourceFile:1408)
	at qr.a(SourceFile:601)
	at aqn.g(SourceFile:1386)

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

Time: 8/8/14 10:48 AM
Description: Ticking entity

java.lang.IllegalArgumentException: Cannot get property ben{name=half, clazz=class auz, values=[upper, lower]} as it does not exist in bdw{block=minecraft:air, properties=[]}
	at bdz.b(SourceFile:112)
	at auy.a(SourceFile:146)
	at zq.d(SourceFile:29)
	at yz.a(SourceFile:85)
	at xl.bG(SourceFile:457)
	at xk.l(SourceFile:1428)
	at xl.l(SourceFile:327)
	at wq.l(SourceFile:126)
	at xk.j(SourceFile:1296)
	at xl.j(SourceFile:199)
	at aqn.a(SourceFile:1408)
	at qr.a(SourceFile:601)
	at aqn.g(SourceFile:1386)
	at aqn.i(SourceFile:1279)
	at qr.i(SourceFile:479)
	at net.minecraft.server.MinecraftServer.y(SourceFile:606)
	at net.minecraft.server.MinecraftServer.x(SourceFile:530)
	at cxz.x(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:446)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at bdz.b(SourceFile:112)
	at auy.a(SourceFile:146)
	at zq.d(SourceFile:29)
	at yz.a(SourceFile:85)
	at xl.bG(SourceFile:457)
	at xk.l(SourceFile:1428)
	at xl.l(SourceFile:327)
	at wq.l(SourceFile:126)
	at xk.j(SourceFile:1296)
	at xl.j(SourceFile:199)
	at aqn.a(SourceFile:1408)
	at qr.a(SourceFile:601)
	at aqn.g(SourceFile:1386)

-- Entity being ticked --
Details:
	Entity Type: Villager (agi)
	Entity ID: 295
	Entity Name: Villager
	Entity's Exact location: 413.06, 64.00, 193.70
	Entity's Block location: 413.00,64.00,193.00 - World: (413,64,193), Chunk: (at 13,4,1 in 25,12; contains blocks 400,0,192 to 415,255,207), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: -0.07, -0.08, -0.04
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at aqn.i(SourceFile:1279)
	at qr.i(SourceFile:479)

-- Affected level --
Details:
	Level name: New 1.8
	All players: 1 total; [qu['TheEpicFace29'/435, l='New 1.8', x=413.81, y=64.00, z=193.70]]
	Chunk stats: ServerChunkCache: 508 Drop: 0
	Level seed: 532909310539921857
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: 256.00,64.00,252.00 - World: (256,64,252), Chunk: (at 0,4,12 in 16,15; contains blocks 256,0,240 to 271,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 198811 game time, 2601 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 1 (now: false), thunder time: 1 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.y(SourceFile:606)
	at net.minecraft.server.MinecraftServer.x(SourceFile:530)
	at cxz.x(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:446)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 14w32d
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_55, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 151109032 bytes (144 MB) / 394313728 bytes (376 MB) up to 523501568 bytes (499 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [qu['TheEpicFace29'/435, l='New 1.8', x=413.81, y=64.00, z=193.70]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.