Please Help. this will only happen when i load my world in 14w18a. 14w17a is fine. Is the download file corrupted? If so how can i re download the snapshot
---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 4/30/14 4:36 PM
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
at cce.a(SourceFile:79)
at cce.a(SourceFile:53)
at cce.a(SourceFile:24)
at cbt.a(SourceFile:219)
at cbt.a(SourceFile:199)
at cbt.a(SourceFile:176)
at bxs.a(SourceFile:495)
at bxl.a(SourceFile:1146)
at bxl.b(SourceFile:937)
at bjf.ai(SourceFile:828)
at bjf.f(SourceFile:755)
at net.minecraft.client.main.Main.main(SourceFile:121)

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

– Head –
Stacktrace:
at cce.a(SourceFile:79)
at cce.a(SourceFile:53)
at cce.a(SourceFile:24)

– Entity being rendered –
Details:
Entity Type: ItemFrame (uh)
Entity ID: 119
Entity Name: entity.ItemFrame.name
Entity's Exact location: -38.50, 38.50, 82.97
Entity's Block location: -39.00,38.00,82.00 - World: (-39,38,82), Chunk: (at 9,2,2 in -3,5; contains blocks -48,0,80 to -33,255,95), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Entity's Momentum: 0.00, 0.00, 0.00
Entity's Rider: ~_ERROR~ NullPointerException: null
Entity's Vehicle: ~_ERROR~ NullPointerException: null

– Renderer details –
Details:
Assigned renderer: cce@52e39ed7
Location: -41.41,-24.50,-36.14 - World: (-42,-25,-37), Chunk: (at 6,-2,11 in -3,-3; contains blocks -48,0,-48 to -33,255,-33), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Rotation: 180.0
Delta: 0.847909
Stacktrace:
at cbt.a(SourceFile:219)
at cbt.a(SourceFile:199)
at cbt.a(SourceFile:176)
at bxs.a(SourceFile:495)
at bxl.a(SourceFile:1146)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [bxb['Johns_World3'/450, l='MpServer', x=2.91, y=63.00, z=119.10]]
Chunk stats: MultiplayerChunkCache: 70, 70
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: -60.00,64.00,248.00 - World: (-60,64,248), Chunk: (at 4,4,8 in -4,15; contains blocks -64,0,240 to -49,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 22239881 game time, 24653308 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: 183 total; [abq['Villager'/275, l='MpServer', x=2.69, y=36.00, z=85.69], yb['Cow'/274, l='MpServer', x=0.44, y=56.00, z=64.38], yb['Cow'/273, l='MpServer', x=3.34, y=56.00, z=64.66], yb['Cow'/272, l='MpServer', x=0.44, y=56.00, z=65.66], uh['entity.ItemFrame.name'/279, l='MpServer', x=8.50, y=63.50, z=94.97], uh['entity.ItemFrame.name'/278, l='MpServer', x=10.50, y=63.50, z=94.97], uh['entity.ItemFrame.name'/277, l='MpServer', x=12.50, y=63.50, z=94.97], uh['entity.ItemFrame.name'/276, l='MpServer', x=14.50, y=63.50, z=94.97], uh['entity.ItemFrame.name'/283, l='MpServer', x=8.03, y=51.50, z=86.50], uh['entity.ItemFrame.name'/282, l='MpServer', x=15.50, y=63.50, z=91.03], uh['entity.ItemFrame.name'/281, l='MpServer', x=13.50, y=63.50, z=91.03], uh['entity.ItemFrame.name'/280, l='MpServer', x=6.50, y=63.50, z=94.97], uh['entity.ItemFrame.name'/287, l='MpServer', x=12.97, y=51.50, z=88.50], uh['entity.ItemFrame.name'/286, l='MpServer', x=12.97, y=51.50, z=86.50], uh['entity.ItemFrame.name'/285, l='MpServer', x=11.50, y=51.50, z=85.03], uh['entity.ItemFrame.name'/284, l='MpServer', x=9.50, y=51.50, z=85.03], abq['Villager'/259, l='MpServer', x=2.69, y=36.00, z=75.28], zk['container.minecart'/262, l='MpServer', x=7.50, y=35.06, z=68.50], zk['container.minecart'/263, l='MpServer', x=7.50, y=35.06, z=70.50], zk['container.minecart'/260, l='MpServer', x=7.50, y=35.06, z=64.50], zk['container.minecart'/261, l='MpServer', x=7.50, y=35.06, z=66.50], zk['container.minecart'/266, l='MpServer', x=7.50, y=35.06, z=76.50], zk['container.minecart'/267, l='MpServer', x=7.50, y=35.06, z=78.50], zk['container.minecart'/264, l='MpServer', x=7.50, y=35.06, z=72.50], zk['container.minecart'/265, l='MpServer', x=7.50, y=35.06, z=74.50], yb['Cow'/270, l='MpServer', x=8.53, y=56.00, z=67.91], yb['Cow'/271, l='MpServer', x=7.25, y=56.00, z=67.78], yb['Cow'/268, l='MpServer', x=8.53, y=56.00, z=66.63], yb['Cow'/269, l='MpServer', x=8.53, y=56.00, z=65.44], uh['entity.ItemFrame.name'/305, l='MpServer', x=12.50, y=65.50, z=94.97], up['Painting'/345, l='MpServer', x=16.97, y=66.50, z=93.00], uh['entity.ItemFrame.name'/304, l='MpServer', x=12.50, y=66.50, z=94.97], uh['entity.ItemFrame.name'/307, l='MpServer', x=10.50, y=66.50, z=94.97], uh['entity.ItemFrame.name'/306, l='MpServer', x=10.50, y=65.50, z=94.97], uh['entity.ItemFrame.name'/309, l='MpServer', x=8.50, y=65.50, z=94.97], uh['entity.ItemFrame.name'/308, l='MpServer', x=8.50, y=66.50, z=94.97], uh['entity.ItemFrame.name'/311, l='MpServer', x=6.50, y=65.50, z=94.97], up['Painting'/310, l='MpServer', x=5.03, y=65.00, z=93.00], ach['arrow'/313, l='MpServer', x=11.00, y=63.05, z=99.28], uh['entity.ItemFrame.name'/312, l='MpServer', x=6.50, y=66.50, z=94.97], uh['entity.ItemFrame.name'/315, l='MpServer', x=12.97, y=51.50, z=98.50], up['Painting'/342, l='MpServer', x=23.00, y=65.50, z=84.03], uh['entity.ItemFrame.name'/314, l='MpServer', x=12.97, y=51.50, z=96.50], uh['entity.ItemFrame.name'/317, l='MpServer', x=9.50, y=51.50, z=99.97], uh['entity.ItemFrame.name'/316, l='MpServer', x=11.50, y=51.50, z=99.97], ze['Boat'/319, l='MpServer', x=8.47, y=63.00, z=107.41], aay['Skeleton'/792, l='MpServer', x=18.50, y=55.00, z=174.50], uh['entity.ItemFrame.name'/318, l='MpServer', x=8.03, y=51.50, z=99.50], uh['entity.ItemFrame.name'/288, l='MpServer', x=12.97, y=51.50, z=90.50], uh['entity.ItemFrame.name'/289, l='MpServer', x=12.97, y=51.50, z=94.50], uh['entity.ItemFrame.name'/290, l='MpServer', x=5.50, y=63.50, z=91.03], yc['Phill'/291, l='MpServer', x=7.22, y=63.00, z=86.75], uh['entity.ItemFrame.name'/292, l='MpServer', x=14.50, y=64.50, z=94.97], uh['entity.ItemFrame.name'/293, l='MpServer', x=12.50, y=64.50, z=94.97], uh['entity.ItemFrame.name'/294, l='MpServer', x=10.50, y=64.50, z=94.97], uh['entity.ItemFrame.name'/295, l='MpServer', x=8.50, y=64.50, z=94.97], uh['entity.ItemFrame.name'/296, l='MpServer', x=6.50, y=64.50, z=94.97], uh['entity.ItemFrame.name'/297, l='MpServer', x=13.50, y=64.50, z=91.03], uh['entity.ItemFrame.name'/298, l='MpServer', x=15.50, y=64.50, z=91.03], uh['entity.ItemFrame.name'/299, l='MpServer', x=14.50, y=66.50, z=94.97], uh['entity.ItemFrame.name'/300, l='MpServer', x=14.50, y=65.50, z=94.97], uh['entity.ItemFrame.name'/301, l='MpServer', x=15.50, y=65.50, z=91.03], uh['entity.ItemFrame.name'/302, l='MpServer', x=6.03, y=64.50, z=90.50], uh['entity.ItemFrame.name'/303, l='MpServer', x=5.50, y=65.50, z=91.03], up['Painting'/310, l='MpServer', x=5.03, y=65.00, z=93.00], uh['entity.ItemFrame.name'/343, l='MpServer', x=18.03, y=64.50, z=90.50], up['Painting'/342, l='MpServer', x=23.00, y=65.50, z=84.03], uh['entity.ItemFrame.name'/341, l='MpServer', x=16.50, y=66.50, z=94.97], uh['entity.ItemFrame.name'/340, l='MpServer', x=16.50, y=65.50, z=94.97], uh['entity.ItemFrame.name'/339, l='MpServer', x=16.50, y=64.50, z=94.97], uh['entity.ItemFrame.name'/338, l='MpServer', x=16.50, y=63.50, z=94.97], yc['Another Life'/337, l='MpServer', x=19.28, y=52.00, z=70.00], ach['arrow'/336, l='MpServer', x=22.31, y=62.94, z=67.47], yr['Wolf'/350, l='MpServer', x=28.69, y=63.00, z=99.69], ach['arrow'/349, l='MpServer', x=20.00, y=53.05, z=101.09], zq['entity.MinecartRideable.name'/348, l='MpServer', x=31.28, y=10.00, z=110.22], zk['container.minecart'/347, l='MpServer', x=31.16, y=10.00, z=111.56], ze['Boat'/346, l='MpServer', x=25.50, y=248.85, z=81.38], up['Painting'/345, l='MpServer', x=16.97, y=66.50, z=93.00], ach['arrow'/344, l='MpServer', x=29.53, y=69.55, z=95.97], abq['Villager'/322, l='MpServer', x=14.47, y=49.00, z=151.28], yp['Iron Golem'/323, l='MpServer', x=15.97, y=48.00, z=146.88], ach['arrow'/320, l='MpServer', x=12.47, y=62.05, z=115.25], zy['Creeper'/334, l='MpServer', x=31.50, y=20.00, z=69.50], ach['arrow'/335, l='MpServer', x=18.94, y=62.94, z=73.31], yk['Sheep'/102, l='MpServer', x=-55.88, y=71.00, z=166.84], ya['Chicken'/101, l='MpServer', x=-48.19, y=68.00, z=175.75], abq['Villager'/369, l='MpServer', x=23.88, y=56.00, z=145.19], abq['Villager'/368, l='MpServer', x=26.66, y=57.00, z=152.06], aay['Skeleton'/381, l='MpServer', x=42.50, y=20.00, z=69.50], uh['entity.ItemFrame.name'/110, l='MpServer', x=-43.50, y=38.50, z=78.03], uh['entity.ItemFrame.name'/109, l='MpServer', x=-46.50, y=38.50, z=78.03], uh['entity.ItemFrame.name'/119, l='MpServer', x=-38.50, y=38.50, z=82.97], abq['Villager'/356, l='MpServer', x=23.56, y=51.00, z=142.72], uh['entity.ItemFrame.name'/118, l='MpServer', x=-35.50, y=38.50, z=82.97], zg['item.item.seeds'/357, l='MpServer', x=25.00, y=56.00, z=137.47], uh['entity.ItemFrame.name'/117, l='MpServer', x=-32.50, y=38.50, z=82.97], zg['item.item.seeds'/358, l='MpServer', x=22.50, y=55.00, z=140.19], uh['entity.ItemFrame.name'/116, l='MpServer', x=-35.50, y=38.50, z=90.97], abq['Villager'/359, l='MpServer', x=23.38, y=56.00, z=139.47], uh['entity.ItemFrame.name'/115, l='MpServer', x=-38.50, y=38.50, z=90.97], abq['Villager'/352, l='MpServer', x=22.28, y=56.00, z=139.47], uh['entity.ItemFrame.name'/114, l='MpServer', x=-41.50, y=38.50, z=90.97], abq['Villager'/353, l='MpServer', x=19.50, y=49.00, z=139.50], uh['entity.ItemFrame.name'/113, l='MpServer', x=-44.50, y=38.50, z=90.97], zg['item.item.seeds'/354, l='MpServer', x=25.44, y=55.00, z=138.88], ach['arrow'/112, l='MpServer', x=-46.72, y=37.05, z=83.63], abq['Villager'/355, l='MpServer', x=17.78, y=59.00, z=138.50], abq['Villager'/364, l='MpServer', x=25.16, y=50.00, z=147.34], abq['Villager'/365, l='MpServer', x=23.03, y=56.00, z=145.69], abl['Zombie'/125, l='MpServer', x=-35.06, y=57.00, z=115.53], abq['Villager'/366, l='MpServer', x=26.28, y=57.00, z=153.00], abq['Villager'/367, l='MpServer', x=20.63, y=51.00, z=145.56], zg['item.item.seeds'/360, l='MpServer', x=23.53, y=56.00, z=139.31], zg['item.item.seeds'/361, l='MpServer', x=22.13, y=55.00, z=138.75], zg['item.item.bread'/362, l='MpServer', x=25.63, y=56.00, z=139.50], yj['Pig'/363, l='MpServer', x=25.69, y=56.00, z=145.53], zg['item.item.rottenFlesh'/137, l='MpServer', x=-37.88, y=64.00, z=165.66], ach['arrow'/411, l='MpServer', x=54.28, y=31.05, z=166.13], uh['entity.ItemFrame.name'/139, l='MpServer', x=-16.50, y=38.50, z=78.03], zg['item.item.egg'/138, l='MpServer', x=-47.88, y=68.00, z=175.03], ach['arrow'/409, l='MpServer', x=48.13, y=24.05, z=121.94], uh['entity.ItemFrame.name'/141, l='MpServer', x=-16.50, y=38.50, z=72.97], ya['Chicken'/415, l='MpServer', x=53.38, y=33.00, z=182.56], uh['entity.ItemFrame.name'/140, l='MpServer', x=-19.50, y=38.50, z=78.03], ach['arrow'/412, l='MpServer', x=54.22, y=31.05, z=166.16], uh['entity.ItemFrame.name'/142, l='MpServer', x=-19.50, y=38.50, z=72.97], yk['Sheep'/413, l='MpServer', x=48.94, y=63.00, z=172.09], yc['1,000 Days'/131, l='MpServer', x=-43.31, y=65.00, z=136.28], ach['arrow'/406, l='MpServer', x=59.34, y=62.05, z=64.25], yc['Pablo'/132, l='MpServer', x=-32.25, y=64.00, z=133.28], aay['Skeleton'/1497, l='MpServer', x=18.50, y=26.00, z=160.50], abq['Villager'/395, l='MpServer', x=32.38, y=57.00, z=135.25], yp['Iron Golem'/154, l='MpServer', x=-27.91, y=56.00, z=115.79], aba['Slime'/698, l='MpServer', x=60.50, y=6.00, z=156.92], aba['Slime'/699, l='MpServer', x=56.50, y=6.00, z=152.92], abq['Villager'/397, l='MpServer', x=35.22, y=54.00, z=148.56], ach['arrow'/396, l='MpServer', x=35.06, y=20.05, z=146.63], uh['entity.ItemFrame.name'/387, l='MpServer', x=38.50, y=52.50, z=84.97], uh['entity.ItemFrame.name'/144, l='MpServer', x=-29.50, y=38.50, z=82.97], uh['entity.ItemFrame.name'/386, l='MpServer', x=36.50, y=52.50, z=84.97], uh['entity.ItemFrame.name'/145, l='MpServer', x=-16.50, y=38.50, z=90.97], uh['entity.ItemFrame.name'/391, l='MpServer', x=37.97, y=12.50, z=108.50], zk['container.minecart'/390, l='MpServer', x=32.50, y=10.00, z=111.22], uh['entity.ItemFrame.name'/389, l='MpServer', x=42.50, y=52.50, z=84.97], ach['arrow'/150, l='MpServer', x=-30.53, y=108.05, z=111.06], uh['entity.ItemFrame.name'/388, l='MpServer', x=40.50, y=52.50, z=84.97], yc['Zypo'/164, l='MpServer', x=-27.31, y=64.00, z=133.28], zg['item.item.rottenFlesh'/425, l='MpServer', x=66.13, y=69.00, z=125.31], ach['arrow'/186, l='MpServer', x=-15.06, y=38.05, z=84.25], uh['entity.ItemFrame.name'/187, l='MpServer', x=-13.50, y=38.50, z=90.97], uh['entity.ItemFrame.name'/184, l='MpServer', x=-10.50, y=38.50, z=72.97], uh['entity.ItemFrame.name'/185, l='MpServer', x=-13.50, y=38.50, z=72.97], uh['entity.ItemFrame.name'/190, l='MpServer', x=-10.50, y=38.50, z=88.03], uh['entity.ItemFrame.name'/191, l='MpServer', x=-13.50, y=38.50, z=88.03], uh['entity.ItemFrame.name'/188, l='MpServer', x=-10.50, y=38.50, z=90.97], uh['entity.ItemFrame.name'/189, l='MpServer', x=-7.50, y=38.50, z=88.03], zg['item.item.arrow'/178, l='MpServer', x=-26.94, y=78.00, z=155.66], xy['Bat'/1277, l='MpServer', x=-29.50, y=40.00, z=161.50], uh['entity.ItemFrame.name'/182, l='MpServer', x=-10.50, y=38.50, z=78.03], uh['entity.ItemFrame.name'/183, l='MpServer', x=-13.50, y=38.50, z=78.03], ach['arrow'/200, l='MpServer', x=-3.06, y=64.05, z=141.00], ym['Snow Golem'/199, l='MpServer', x=-2.66, y=63.00, z=112.63], zp['container.minecart'/198, l='MpServer', x=-2.50, y=61.06, z=112.50], uh['entity.ItemFrame.name'/193, l='MpServer', x=-10.50, y=38.50, z=82.97], uh['entity.ItemFrame.name'/192, l='MpServer', x=-7.50, y=38.50, z=82.97], zp['container.minecart'/195, l='MpServer', x=-2.50, y=61.06, z=111.50], uh['entity.ItemFrame.name'/194, l='MpServer', x=-13.50, y=38.50, z=82.97], xy['Bat'/761, l='MpServer', x=52.63, y=45.49, z=191.25], yn['Squid'/997, l='MpServer', x=35.53, y=61.00, z=171.50], yn['Squid'/996, l='MpServer', x=34.50, y=61.00, z=171.50], yn['Squid'/999, l='MpServer', x=36.44, y=61.00, z=174.50], ui['entity.LeashKnot.name'/449, l='MpServer', x=26.50, y=57.50, z=145.50], yn['Squid'/998, l='MpServer', x=37.50, y=61.00, z=174.50], aay['Skeleton'/1186, l='MpServer', x=-33.50, y=106.00, z=106.50], aay['Skeleton'/1185, l='MpServer', x=-34.50, y=106.00, z=106.50], zy['Creeper'/1184, l='MpServer', x=-35.50, y=106.00, z=106.50], xy['Bat'/732, l='MpServer', x=3.61, y=20.27, z=188.63], zy['Creeper'/1211, l='MpServer', x=-37.50, y=116.00, z=119.50], abl['Zombie'/1214, l='MpServer', x=-37.50, y=116.00, z=120.50], abl['Zombie'/1215, l='MpServer', x=-34.50, y=116.00, z=116.50], bxb['Johns_World3'/450, l='MpServer', x=2.91, y=63.00, z=119.10], zy['Creeper'/1213, l='MpServer', x=-37.50, y=116.00, z=121.50]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at buw.a(SourceFile:308)
at bjf.b(SourceFile:2069)
at bjf.f(SourceFile:764)
at net.minecraft.client.main.Main.main(SourceFile:121)

– System Details –
Details:
Minecraft Version: 14w18a
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 378131744 bytes (360 MB) / 557842432 bytes (532 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 14w18a
LWJGL: 2.9.1
OpenGL: GeForce GT 545/PCIe/SSE2 GL version 4.4.0, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using GL 1