Minecraft Forums

Hello folks. I was just playing in the latest snapshot (14w27b), sailing around in a boat, when the game crashed. After starting Minecraft back up, my world was missing from the list. Looking in the folder for the world, it contains data, DIM1, DIM-1, playerdata, region, stats, level.dat_mcr, and session.lock. Looking at other, functioning saves, it seems to be missing level.dat and level.dat_old. The level.dat_mcr is from 4 days ago.



Here is the crash report:

---- Minecraft Crash Report ----
// Sorry

Time: 7/7/14 9:26 PM
Description: Exception while updating neighbours

java.lang.IllegalArgumentException: Cannot get property azh{name=half, clazz=class aqo, values=[upper, lower]} as it does not exist!
at ayx.b(SourceFile:120)
at aqn.a(SourceFile:156)
at aqn.a(SourceFile:163)
at amp.e(SourceFile:470)
at amp.d(SourceFile:434)
at amp.c(SourceFile:405)
at amp.d(SourceFile:299)
at aqv.a(SourceFile:129)
at aqv.c(SourceFile:115)
at pb.a(SourceFile:500)
at pb.c(SourceFile:198)
at net.minecraft.server.MinecraftServer.x(SourceFile:575)
at net.minecraft.server.MinecraftServer.w(SourceFile:511)
at cpw.w(SourceFile:132)
at net.minecraft.server.MinecraftServer.run(SourceFile:427)
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 ayx.b(SourceFile:120)
at aqn.a(SourceFile:156)
at aqn.a(SourceFile:163)

-- Block being updated --
Details:
Source block type: ID #0 (tile.air // aon)
Block: minecraft:iron_door[facing=east,half=upper,hinge=left,open=false,powered=true]
Block location: World: (-844,29,497), Chunk: (at 4,1,1 in -53,31; contains blocks -848,0,496 to -833,255,511), Region: (-2,0; contains chunks -64,0 to -33,31, blocks -1024,0,0 to -513,255,511)
Stacktrace:
at amp.e(SourceFile:470)
at amp.d(SourceFile:434)
at amp.c(SourceFile:405)
at amp.d(SourceFile:299)
at aqv.a(SourceFile:129)
at aqv.c(SourceFile:115)

-- Block being ticked --
Details:
Block type: ID #8 (tile.water // aqv)
Block data value: 3 / 0x3 / 0b0011
Block location: World: (-843,29,498), Chunk: (at 5,1,2 in -53,31; contains blocks -848,0,496 to -833,255,511), Region: (-2,0; contains chunks -64,0 to -33,31, blocks -1024,0,0 to -513,255,511)
Stacktrace:
at pb.a(SourceFile:500)
at pb.c(SourceFile:198)

-- Affected level --
Details:
Level name: Dream Machine
All players: 1 total; [pe['TheCheatCommando'/189, l='Dream Machine', x=-771.65, y=62.25, z=447.06]]
Chunk stats: ServerChunkCache: 701 Drop: 0
Level seed: -3910610922353528556
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: 86.00,64.00,252.00 - World: (86,64,252), Chunk: (at 6,4,12 in 5,15; contains blocks 80,0,240 to 95,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 440023 game time, 561691 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 39648 (now: false), thunder time: 80997 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.x(SourceFile:575)
at net.minecraft.server.MinecraftServer.w(SourceFile:511)
at cpw.w(SourceFile:132)
at net.minecraft.server.MinecraftServer.run(SourceFile:427)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 14w27b
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_05, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1404391536 bytes (1339 MB) / 2138046464 bytes (2039 MB) up to 2138046464 bytes (2039 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms2G -Xmx2G
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [pe['TheCheatCommando'/189, l='Dream Machine', x=-771.65, y=62.25, z=447.06]]
Type: Integrated Server (map_client.txt)
Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

Probably a snapshot bug. Did you report the crash to mojang?