---- Minecraft Crash Report ----
// You're mean.

Time: 7/14/14 7:09 PM
Description: Unexpected error

java.lang.IllegalArgumentException: Cannot get property bco

{name=shape, clazz=class arw, values=[north_south, east_west, ascending_east, ascending_west, ascending_north, ascending_south]}

as it does not exist in bby

{block=minecraft:piston_extension, properties=[facing, type]}

at bcb.b(SourceFile:112)
at art.a(SourceFile:398)
at bbq.a(SourceFile:141)
at asa.a(SourceFile:526)
at apo.a(SourceFile:784)
at wg.a(SourceFile:1036)
at cgt.a(SourceFile:384)
at cgt.a(SourceFile:1104)
at cgt.b(SourceFile:972)
at bqn.ap(SourceFile:889)
at bqn.a(SourceFile:303)
at net.minecraft.client.main.Main.main(SourceFile:120)

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

– Head –
Stacktrace:
at bcb.b(SourceFile:112)
at art.a(SourceFile:398)
at bbq.a(SourceFile:141)
at asa.a(SourceFile:526)
at apo.a(SourceFile:784)
at wg.a(SourceFile:1036)
at cgt.a(SourceFile:384)
at cgt.a(SourceFile:1104)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [cfx['Legodreamer29'/36652, l='MpServer', x=1233.70, y=64.00, z=-2227.91]]
Chunk stats: MultiplayerChunkCache: 121, 121
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: 914.00,65.00,-2781.00 - World: (914,65,-2781), Chunk: (at 2,4,3 in 57,-174; contains blocks 912,0,-2784 to 927,255,-2769), Region: (1,-6; contains chunks 32,-192 to 63,-161, blocks 512,0,-3072 to 1023,255,-2561)
Level time: 389427101 game time, 102567544 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: survival (ID 0). Hardcore: false. Cheats: false
Forced entities: 207 total; [cfx['Legodreamer29'/36652, l='MpServer', x=1233.70, y=64.00, z=-2227.91], xh['Painting'/36654, l='MpServer', x=1237.03, y=70.00, z=-2239.50], ada['item.tile.goldenRail'/37953, l='MpServer', x=1235.47, y=65.00, z=-2227.13], adv['Enderman'/44956, l='MpServer', x=1295.50, y=67.00, z=-2212.50], afm['Zombie'/44959, l='MpServer', x=1296.50, y=67.00, z=-2212.50], adv['Enderman'/38520, l='MpServer', x=1187.50, y=75.00, z=-2226.50], wy['entity.ItemFrame.name'/36781, l='MpServer', x=1258.97, y=61.50, z=-2238.50], wy['entity.ItemFrame.name'/36780, l='MpServer', x=1258.97, y=61.50, z=-2237.50], afs['Villager'/36783, l='MpServer', x=1258.56, y=76.56, z=-2223.97], wy['entity.ItemFrame.name'/36782, l='MpServer', x=1258.97, y=61.50, z=-2239.50], wy['entity.ItemFrame.name'/36777, l='MpServer', x=1256.50, y=61.50, z=-2237.03], wy['entity.ItemFrame.name'/36776, l='MpServer', x=1254.50, y=61.50, z=-2237.03], wy['entity.ItemFrame.name'/36779, l='MpServer', x=1258.50, y=61.50, z=-2237.03], wy['entity.ItemFrame.name'/36778, l='MpServer', x=1257.50, y=61.50, z=-2237.03], wy['entity.ItemFrame.name'/36773, l='MpServer', x=1252.50, y=61.50, z=-2237.03], xh['Painting'/36707, l='MpServer', x=1237.03, y=70.00, z=-2242.50], wy['entity.ItemFrame.name'/36772, l='MpServer', x=1251.50, y=61.50, z=-2237.03], wy['entity.ItemFrame.name'/36775, l='MpServer', x=1255.50, y=61.50, z=-2237.03], xh['Painting'/36768, l='MpServer', x=1254.00, y=71.00, z=-2244.97], wy['entity.ItemFrame.name'/36774, l='MpServer', x=1253.50, y=61.50, z=-2237.03], wy['entity.ItemFrame.name'/36769, l='MpServer', x=1248.50, y=61.50, z=-2237.03], xh['Painting'/36768, l='MpServer', x=1254.00, y=71.00, z=-2244.97], wy['entity.ItemFrame.name'/36771, l='MpServer', x=1250.50, y=61.50, z=-2237.03], xh['Painting'/36705, l='MpServer', x=1246.97, y=70.50, z=-2241.00], wy['entity.ItemFrame.name'/36770, l='MpServer', x=1249.50, y=61.50, z=-2237.03], afh['Spider'/40108, l='MpServer', x=1215.50, y=64.00, z=-2264.50], aez['Skeleton'/36789, l='MpServer', x=1289.50, y=75.00, z=-2277.50], adt['Creeper'/36784, l='MpServer', x=1268.09, y=66.00, z=-2291.59], abg['Chicken'/36751, l='MpServer', x=1238.19, y=66.02, z=-2205.22], abg['Chicken'/36750, l='MpServer', x=1238.19, y=66.02, z=-2205.22], abg['Chicken'/36749, l='MpServer', x=1238.19, y=66.02, z=-2205.22], abg['Chicken'/36748, l='MpServer', x=1238.19, y=66.02, z=-2205.22], abg['Chicken'/36747, l='MpServer', x=1238.19, y=66.02, z=-2205.81], abg['Chicken'/36746, l='MpServer', x=1238.19, y=66.02, z=-2205.81], abg['Chicken'/36745, l='MpServer', x=1238.19, y=66.02, z=-2205.81], abg['Chicken'/36744, l='MpServer', x=1238.19, y=66.02, z=-2205.22], abg['Chicken'/36743, l='MpServer', x=1238.19, y=66.02, z=-2205.22], abg['Chicken'/36742, l='MpServer', x=1238.78, y=66.02, z=-2205.81], abg['Chicken'/36741, l='MpServer', x=1238.78, y=66.02, z=-2205.81], abg['Chicken'/36740, l='MpServer', x=1238.78, y=66.02, z=-2205.22], abg['Chicken'/36739, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36738, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36737, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36736, l='MpServer', x=1234.19, y=70.02, z=-2202.22], wy['entity.ItemFrame.name'/36766, l='MpServer', x=1249.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36767, l='MpServer', x=1248.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36764, l='MpServer', x=1251.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36765, l='MpServer', x=1250.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36762, l='MpServer', x=1254.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36763, l='MpServer', x=1252.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36760, l='MpServer', x=1256.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36761, l='MpServer', x=1255.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36758, l='MpServer', x=1258.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36759, l='MpServer', x=1257.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36756, l='MpServer', x=1258.97, y=61.50, z=-2243.50], wy['entity.ItemFrame.name'/36757, l='MpServer', x=1258.97, y=61.50, z=-2244.50], wy['entity.ItemFrame.name'/36754, l='MpServer', x=1258.97, y=61.50, z=-2241.50], wy['entity.ItemFrame.name'/36755, l='MpServer', x=1258.97, y=61.50, z=-2242.50], abg['Chicken'/36752, l='MpServer', x=1238.19, y=66.02, z=-2205.81], wy['entity.ItemFrame.name'/36753, l='MpServer', x=1258.97, y=61.50, z=-2240.50], adk['entity.MinecartRideable.name'/36704, l='MpServer', x=1240.50, y=59.06, z=-2254.56], afs['Villager'/35628, l='MpServer', x=1248.69, y=159.19, z=-2211.13], xh['Painting'/36705, l='MpServer', x=1246.97, y=70.50, z=-2241.00], afs['Villager'/35629, l='MpServer', x=1258.13, y=159.09, z=-2222.31], wy['entity.ItemFrame.name'/36706, l='MpServer', x=1243.97, y=65.50, z=-2242.50], afs['Villager'/35630, l='MpServer', x=1259.47, y=159.22, z=-2223.75], xh['Painting'/36707, l='MpServer', x=1237.03, y=70.00, z=-2242.50], afs['Villager'/35631, l='MpServer', x=1258.64, y=159.19, z=-2223.51], afs['Villager'/35624, l='MpServer', x=1260.66, y=159.22, z=-2222.31], afs['Villager'/36708, l='MpServer', x=1247.73, y=76.42, z=-2213.05], afs['Villager'/35625, l='MpServer', x=1259.81, y=159.19, z=-2222.31], afs['Villager'/36709, l='MpServer', x=1247.78, y=76.35, z=-2211.13], afs['Villager'/36710, l='MpServer', x=1247.86, y=76.50, z=-2212.27], afs['Villager'/35626, l='MpServer', x=1258.94, y=159.16, z=-2222.31], afs['Villager'/36711, l='MpServer', x=1247.38, y=159.16, z=-2211.88], afs['Villager'/35627, l='MpServer', x=1248.69, y=159.19, z=-2210.31], abd['Bat'/46240, l='MpServer', x=1253.26, y=40.28, z=-2171.70], afs['Villager'/36712, l='MpServer', x=1247.58, y=159.16, z=-2212.80], afs['Villager'/35620, l='MpServer', x=1248.69, y=159.18, z=-2212.80], afs['Villager'/35621, l='MpServer', x=1248.69, y=159.13, z=-2213.72], abg['Chicken'/36713, l='MpServer', x=1234.78, y=70.02, z=-2202.81], afs['Villager'/35622, l='MpServer', x=1259.02, y=159.18, z=-2222.31], abg['Chicken'/36714, l='MpServer', x=1234.78, y=70.02, z=-2202.81], abd['Bat'/46243, l='MpServer', x=1263.64, y=42.17, z=-2174.21], afs['Villager'/35623, l='MpServer', x=1257.28, y=159.09, z=-2222.31], abg['Chicken'/36715, l='MpServer', x=1234.78, y=70.02, z=-2202.81], afs['Villager'/35616, l='MpServer', x=1258.32, y=76.26, z=-2223.16], abg['Chicken'/36716, l='MpServer', x=1234.78, y=70.02, z=-2202.81], afs['Villager'/35617, l='MpServer', x=1259.40, y=76.17, z=-2223.14], abg['Chicken'/36717, l='MpServer', x=1234.78, y=70.02, z=-2202.81], afs['Villager'/35618, l='MpServer', x=1248.69, y=159.19, z=-2212.15], abg['Chicken'/36718, l='MpServer', x=1234.78, y=70.02, z=-2202.81], afs['Villager'/35619, l='MpServer', x=1248.69, y=159.17, z=-2211.93], abg['Chicken'/36719, l='MpServer', x=1234.19, y=70.02, z=-2202.81], abg['Chicken'/36721, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36720, l='MpServer', x=1234.78, y=70.02, z=-2202.22], abg['Chicken'/36723, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36722, l='MpServer', x=1234.78, y=70.02, z=-2202.22], abg['Chicken'/36725, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36724, l='MpServer', x=1234.19, y=70.02, z=-2202.81], abg['Chicken'/36727, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36726, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36729, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36728, l='MpServer', x=1234.19, y=70.02, z=-2202.81], abg['Chicken'/36731, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36730, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36733, l='MpServer', x=1234.78, y=70.02, z=-2202.22], adv['Enderman'/41416, l='MpServer', x=1181.50, y=78.00, z=-2226.50], abg['Chicken'/36732, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36735, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36734, l='MpServer', x=1234.19, y=70.02, z=-2202.22], abg['Chicken'/36672, l='MpServer', x=1215.78, y=2.02, z=-2205.81], abg['Chicken'/36673, l='MpServer', x=1215.19, y=2.02, z=-2205.81], ada['item.item.rottenFlesh'/36678, l='MpServer', x=1223.78, y=64.00, z=-2246.06], adk['entity.MinecartRideable.name'/36679, l='MpServer', x=1229.47, y=21.00, z=-2238.50], agm['arrow'/36676, l='MpServer', x=1230.94, y=66.53, z=-2251.63], ada['item.item.rottenFlesh'/36677, l='MpServer', x=1225.13, y=64.00, z=-2244.75], adk['entity.MinecartRideable.name'/36682, l='MpServer', x=1229.47, y=17.00, z=-2238.50], adk['entity.MinecartRideable.name'/36683, l='MpServer', x=1229.50, y=37.00, z=-2238.50], adk['entity.MinecartRideable.name'/36680, l='MpServer', x=1229.47, y=29.00, z=-2238.50], adk['entity.MinecartRideable.name'/36681, l='MpServer', x=1229.50, y=25.00, z=-2238.50], adk['entity.MinecartRideable.name'/36686, l='MpServer', x=1229.50, y=45.00, z=-2238.50], adk['entity.MinecartRideable.name'/36687, l='MpServer', x=1229.50, y=53.00, z=-2238.50], adk['entity.MinecartRideable.name'/36684, l='MpServer', x=1229.47, y=41.00, z=-2238.50], adk['entity.MinecartRideable.name'/36685, l='MpServer', x=1229.47, y=33.00, z=-2238.50], adk['entity.MinecartRideable.name'/36691, l='MpServer', x=1229.47, y=64.00, z=-2238.53], afs['Villager'/35615, l='MpServer', x=1248.69, y=76.55, z=-2212.09], adk['entity.MinecartRideable.name'/36690, l='MpServer', x=1229.47, y=61.00, z=-2238.53], afs['Villager'/35614, l='MpServer', x=1248.69, y=76.08, z=-2210.44], adk['entity.MinecartRideable.name'/36689, l='MpServer', x=1229.50, y=49.00, z=-2238.50], afs['Villager'/35613, l='MpServer', x=1257.49, y=76.40, z=-2223.34], adk['entity.MinecartRideable.name'/36688, l='MpServer', x=1229.50, y=57.00, z=-2238.50], acd['Iron Golem'/35612, l='MpServer', x=1259.31, y=73.00, z=-2211.28], aby['Sheep'/36695, l='MpServer', x=1228.53, y=63.00, z=-2221.31], acd['Iron Golem'/35611, l='MpServer', x=1258.66, y=73.00, z=-2212.97], aby['Sheep'/36694, l='MpServer', x=1227.41, y=63.00, z=-2220.47], afs['Villager'/35610, l='MpServer', x=1257.51, y=76.92, z=-2222.31], abh['Cow'/36693, l='MpServer', x=1222.31, y=63.00, z=-2216.56], afs['Villager'/35609, l='MpServer', x=1248.69, y=76.20, z=-2211.32], abh['Cow'/36692, l='MpServer', x=1221.44, y=63.00, z=-2215.28], afs['Villager'/35608, l='MpServer', x=1258.35, y=77.03, z=-2222.31], afs['Villager'/35607, l='MpServer', x=1259.19, y=76.21, z=-2222.31], aby['Sheep'/36698, l='MpServer', x=1226.16, y=63.00, z=-2220.47], afs['Villager'/35606, l='MpServer', x=1248.69, y=76.28, z=-2212.91], aby['Sheep'/36697, l='MpServer', x=1221.44, y=63.00, z=-2222.38], afs['Villager'/35605, l='MpServer', x=1248.69, y=76.13, z=-2213.71], aby['Sheep'/36696, l='MpServer', x=1222.25, y=63.00, z=-2223.56], afs['Villager'/35604, l='MpServer', x=1260.44, y=76.30, z=-2222.31], wy['entity.ItemFrame.name'/36703, l='MpServer', x=1247.50, y=61.50, z=-2244.97], wy['entity.ItemFrame.name'/36653, l='MpServer', x=1247.50, y=61.50, z=-2237.03], xh['Painting'/36654, l='MpServer', x=1237.03, y=70.00, z=-2239.50], adj['container.minecart'/36661, l='MpServer', x=1199.50, y=60.06, z=-2230.32], afh['Spider'/36660, l='MpServer', x=1188.63, y=70.00, z=-2269.38], aes['Zombie Pigman'/36663, l='MpServer', x=1207.50, y=86.00, z=-2269.50], ada['item.item.dyePowder.black'/36662, l='MpServer', x=1199.41, y=50.00, z=-2170.81], afh['Spider'/36656, l='MpServer', x=1177.16, y=70.00, z=-2258.09], afh['Spider'/36659, l='MpServer', x=1183.50, y=70.00, z=-2258.88], aez['Skeleton'/36658, l='MpServer', x=1178.22, y=42.00, z=-2169.84], aby['Sheep'/36669, l='MpServer', x=1215.53, y=66.02, z=-2215.56], aby['Sheep'/36668, l='MpServer', x=1215.53, y=66.02, z=-2215.56], abg['Chicken'/36671, l='MpServer', x=1215.19, y=2.02, z=-2205.22], aby['Sheep'/36670, l='MpServer', x=1215.53, y=66.02, z=-2215.47], adj['container.minecart'/36665, l='MpServer', x=1201.50, y=61.06, z=-2232.32], aes['Zombie Pigman'/36664, l='MpServer', x=1211.50, y=86.00, z=-2269.50], wy['entity.ItemFrame.name'/36667, l='MpServer', x=1215.50, y=65.50, z=-2217.03], wy['entity.ItemFrame.name'/36666, l='MpServer', x=1215.50, y=66.50, z=-2217.03], ada['item.tile.goldenRail'/48066, l='MpServer', x=1234.95, y=65.00, z=-2228.09], ada['item.tile.goldenRail'/48069, l='MpServer', x=1234.47, y=65.75, z=-2227.55], ada['item.tile.goldenRail'/48070, l='MpServer', x=1234.21, y=65.88, z=-2228.12], ada['item.tile.goldenRail'/48071, l='MpServer', x=1234.66, y=65.79, z=-2227.34], ada['item.tile.goldenRail'/48072, l='MpServer', x=1234.54, y=65.66, z=-2227.71], afs['Villager'/36037, l='MpServer', x=1270.09, y=159.25, z=-2211.88], afs['Villager'/36036, l='MpServer', x=1269.28, y=159.16, z=-2213.69], afs['Villager'/36033, l='MpServer', x=1269.28, y=159.19, z=-2212.81], afs['Villager'/36032, l='MpServer', x=1269.28, y=159.22, z=-2210.25], adv['Enderman'/37634, l='MpServer', x=1187.50, y=75.00, z=-2228.50], afs['Villager'/36035, l='MpServer', x=1270.98, y=159.22, z=-2211.84], afs['Villager'/36034, l='MpServer', x=1269.28, y=159.25, z=-2211.94], afm['Zombie'/41560, l='MpServer', x=1217.50, y=6.00, z=-2210.50], aes['Zombie Pigman'/48021, l='MpServer', x=1203.50, y=85.91, z=-2265.50], afs['Villager'/36026, l='MpServer', x=1270.11, y=75.98, z=-2211.81], afs['Villager'/36027, l='MpServer', x=1270.02, y=75.98, z=-2212.69], afs['Villager'/36024, l='MpServer', x=1269.28, y=76.27, z=-2213.65], afs['Villager'/36025, l='MpServer', x=1270.06, y=76.16, z=-2213.53], afs['Villager'/36030, l='MpServer', x=1269.28, y=159.17, z=-2211.14], afs['Villager'/36031, l='MpServer', x=1270.28, y=159.26, z=-2212.73], afs['Villager'/36028, l='MpServer', x=1269.28, y=76.80, z=-2212.76], afs['Villager'/36029, l='MpServer', x=1269.28, y=76.11, z=-2211.71], afs['Villager'/36018, l='MpServer', x=1259.75, y=159.09, z=-2201.72], afs['Villager'/36019, l='MpServer', x=1258.70, y=159.22, z=-2199.90], afs['Villager'/36016, l='MpServer', x=1260.66, y=159.16, z=-2201.72], afs['Villager'/36017, l='MpServer', x=1257.31, y=159.09, z=-2201.72], afs['Villager'/36022, l='MpServer', x=1271.02, y=76.47, z=-2212.39], afs['Villager'/36023, l='MpServer', x=1269.28, y=76.44, z=-2210.87], afs['Villager'/36020, l='MpServer', x=1260.02, y=159.16, z=-2200.54], afm['Zombie'/41473, l='MpServer', x=1204.06, y=55.00, z=-2209.47], afs['Villager'/36021, l='MpServer', x=1259.10, y=159.13, z=-2200.79], afs['Villager'/36011, l='MpServer', x=1259.28, y=76.48, z=-2200.84], afs['Villager'/36010, l='MpServer', x=1257.38, y=77.34, z=-2201.72], afs['Villager'/36009, l='MpServer', x=1258.23, y=76.24, z=-2201.72], afs['Villager'/36008, l='MpServer', x=1259.13, y=76.30, z=-2201.72], afs['Villager'/36015, l='MpServer', x=1259.02, y=159.18, z=-2201.72], afs['Villager'/36014, l='MpServer', x=1258.10, y=159.11, z=-2201.72], afs['Villager'/36013, l='MpServer', x=1257.44, y=76.59, z=-2200.84], afs['Villager'/36012, l='MpServer', x=1258.27, y=76.02, z=-2200.83], afs['Villager'/36007, l='MpServer', x=1260.00, y=76.07, z=-2201.72], afs['Villager'/36006, l='MpServer', x=1258.84, y=76.17, z=-2199.93]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Non-integrated multiplayer server
Stacktrace:
at cbw.a(SourceFile:308)
at bqn.b(SourceFile:2140)
at bqn.a(SourceFile:317)
at net.minecraft.client.main.Main.main(SourceFile:120)

– System Details –
Details:
Minecraft Version: 14w28b
Operating System: Mac OS X (x86_64) version 10.9.4
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 56714264 bytes (54 MB) / 180572160 bytes (172 MB) up to 5359992832 bytes (5111 MB)
JVM Flags: 1 total; -Xmx5G
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 14w28b
LWJGL: 2.9.1
OpenGL: Intel Iris Pro OpenGL Engine GL version 2.1 INTEL-8.28.30, Intel Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.

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)