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I am having problems turning my multiplayer world into a single player one. It works fine when I run the server and connect but when I put it in my single player saves i get a crash. I am using Optifine and Defensive Villagers. Also I am using MultiMC if that matters.


---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 7/13/13 1:42 PM
Description: Exception ticking world

java.lang.NoSuchFieldError: captureDrops
at sj.bJ(EntityZombie.java:380)
at aan.a(SourceFile:162)
at aan.a(SourceFile:139)
at iz.b(SourceFile:119)
at WorldServerOF.b(WorldServerOF.java:119)
at net.minecraft.server.MinecraftServer.r(SourceFile:454)
at net.minecraft.server.MinecraftServer.q(SourceFile:397)
at bjg.q(IntegratedServer.java:171)
at net.minecraft.server.MinecraftServer.run(SourceFile:331)
at gp.run(SourceFile:573)


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

-- Head --
Stacktrace:
at sj.bJ(EntityZombie.java:380)
at aan.a(SourceFile:162)
at aan.a(SourceFile:139)
at iz.b(SourceFile:119)
at WorldServerOF.b(WorldServerOF.java:119)

-- Affected level --
Details:
Level name: world
All players: 1 total; [jc['Austin001316'/167, l='world', x=-1407.13, y=82.61, z=179.17]]
Chunk stats: ServerChunkCache: 1066 Drop: 0
Level seed: 279349658
Level generator: ID 02 - largeBiomes, ver 0. Features enabled: true
Level generator options:
Level spawn location: World: (84,64,252), Chunk: (at 4,4,12 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: 1927047 game time, 1097 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 19916430 (now: false), thunder time: 19916430 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.r(SourceFile:454)
at net.minecraft.server.MinecraftServer.q(SourceFile:397)
at bjg.q(IntegratedServer.java:171)
at net.minecraft.server.MinecraftServer.run(SourceFile:331)
at gp.run(SourceFile:573)

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 300387552 bytes (286 MB) / 514523136 bytes (490 MB) up to 4660396032 bytes (4444 MB)
JVM Flags: 2 total; -Xms512m -Xmx5000m
AABB Pool Size: 5703 (319368 bytes; 0 MB) allocated, 49 (2744 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config, WrUpdaterThreaded, ...]
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 71
Profiler Position: N/A (disabled)
Vec3 Pool Size: 1291 (72296 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 8; [jc['Austin001316'/167, l='world', x=-1407.13, y=82.61, z=179.17]]
Type: Integrated Server (map_client.txt)
Is Modded: Very likely; Jar signature invalidated