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---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 12/26/12 10:16 PM
Description: Ticking entity

java.lang.IllegalStateException: Entity is already tracked!
at ii.a(SourceFile:69)
at ii.a(SourceFile:47)
at ij.a(SourceFile:24)
at yc.a(SourceFile:842)
at in.a(SourceFile:580)
at yc.d(SourceFile:834)
at gm.a(SourceFile:370)
at lq.b(SourceFile:1493)
at px.b(SourceFile:212)
at amn.a(SourceFile:62)
at lq.D(SourceFile:653)
at lq.d(SourceFile:616)
at px.j_(SourceFile:72)
at yc.a(SourceFile:1319)
at in.a(SourceFile:450)
at yc.g(SourceFile:1297)
at yc.h(SourceFile:1196)
at in.h(SourceFile:362)
at net.minecraft.server.MinecraftServer.r(SourceFile:744)
at net.minecraft.server.MinecraftServer.q(SourceFile:679)
at bdz.q(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:613)
at fy.run(SourceFile:849)


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

-- Head --
Stacktrace:
at ii.a(SourceFile:69)
at ii.a(SourceFile:47)
at ij.a(SourceFile:24)
at yc.a(SourceFile:842)
at in.a(SourceFile:580)
at yc.d(SourceFile:834)
at gm.a(SourceFile:370)
at lq.b(SourceFile:1493)
at px.b(SourceFile:212)
at amn.a(SourceFile:62)
at lq.D(SourceFile:653)
at lq.d(SourceFile:616)
at px.j_(SourceFile:72)
at yc.a(SourceFile:1319)
at in.a(SourceFile:450)
at yc.g(SourceFile:1297)

-- Entity being ticked --
Details:
Entity Type: Item (px)
Entity ID: 190
Name: item.tile.torch
Exact location: 100.00, 50.13, 0.00
Block location: World: (100,50,0), Chunk: (at 4,3,0 in 6,0; contains blocks 96,0,0 to 111,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Momentum: -0.00, -0.16, -0.00
Stacktrace:
at yc.h(SourceFile:1196)
at in.h(SourceFile:362)

-- Affected level --
Details:
Level name: Aether 2.0
All players: 1 total; [iq['Fitmit_12'/185, l='Aether 2.0', x=100.00, y=49.00, z=0.00]]
Chunk stats: ServerChunkCache: 441 Drop: 0
Level seed: 1957729381
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 0 game time, 0 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: ~~ERROR~~ NullPointerException: null
Stacktrace:
at net.minecraft.server.MinecraftServer.r(SourceFile:744)
at net.minecraft.server.MinecraftServer.q(SourceFile:679)
at bdz.q(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:613)
at fy.run(SourceFile:849)

-- System Details --
Details:
Minecraft Version: 1.4.6
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot™ Client VM (mixed mode, sharing), Oracle Corporation
Memory: 59381536 bytes (56 MB) / 227373056 bytes (216 MB) up to 259522560 bytes (247 MB)
JVM Flags: 0 total;
AABB Pool Size: 2308 (129248 bytes; 0 MB) allocated, 2250 (126000 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
Profiler Position: N/A (disabled)
Vec3 Pool Size: 799 (44744 bytes; 0 MB) allocated, 794 (44464 bytes; 0 MB) used
Player Count: 1 / 8; [iq['Fitmit_12'/185, l='Aether 2.0', x=100.00, y=49.00, z=0.00]]
Type: Integrated Server (map_client.txt)
Is Modded: Very likely; Jar signature invalidated