---- Minecraft Crash Report ---- // Quite honestly, I wouldn't worry myself about that. Time: 16.01.14 16:56 Description: Ticking entity java.lang.IllegalArgumentException: Empty string not allowed at ei.(SourceFile:15) at dw.a(SourceFile:82) at apq.b(SourceFile:25) at apq.s(SourceFile:44) at nf.b(SourceFile:390) at nf.m_(SourceFile:196) at ahb.a(SourceFile:1370) at nc.a(SourceFile:520) at ahb.g(SourceFile:1348) at ahb.i(SourceFile:1253) at nc.i(SourceFile:393) at net.minecraft.server.MinecraftServer.u(SourceFile:527) at net.minecraft.server.MinecraftServer.t(SourceFile:461) at bvt.t(SourceFile:123) at net.minecraft.server.MinecraftServer.run(SourceFile:377) at ls.run(SourceFile:647) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at ei.(SourceFile:15) at dw.a(SourceFile:82) at apq.b(SourceFile:25) at apq.s(SourceFile:44) at nf.b(SourceFile:390) at nf.m_(SourceFile:196) at ahb.a(SourceFile:1370) at nc.a(SourceFile:520) at ahb.g(SourceFile:1348) -- Entity being ticked -- Details: Entity Type: null (nf) Entity ID: 1 Entity Name: l3viathan2142 Entity's Exact location: -21,64, 62,84, -67,72 Entity's Block location: -22,00,62,00,-68,00 - World: (-22,62,-68), Chunk: (at 10,3,12 in -2,-5; contains blocks -32,0,-80 to -17,255,-65), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1) Entity's Momentum: 0,00, 0,00, 0,00 Entity's Rider: ~~ERROR~~ NullPointerException: null Entity's Vehicle: ~~ERROR~~ NullPointerException: null Stacktrace: at ahb.i(SourceFile:1253) at nc.i(SourceFile:393) -- Affected level -- Details: Level name: Redstone All players: 1 total; [nf['l3viathan2142'/1, l='Redstone', x=-21,64, y=62,84, z=-67,72]] Chunk stats: ServerChunkCache: 1250 Drop: 0 Level seed: 9026427662770611858 Level generator: ID 01 - flat, ver 0. Features enabled: false Level generator options: 2;7,3x1,52x24;2; Level spawn location: 792,00,4,00,72,00 - World: (792,4,72), Chunk: (at 8,0,8 in 49,4; contains blocks 784,0,64 to 799,255,79), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511) Level time: 2670531 game time, 13000 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 150233 (now: false), thunder time: 23008 (now: false) Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true Stacktrace: at net.minecraft.server.MinecraftServer.u(SourceFile:527) at net.minecraft.server.MinecraftServer.t(SourceFile:461) at bvt.t(SourceFile:123) at net.minecraft.server.MinecraftServer.run(SourceFile:377) at ls.run(SourceFile:647) -- System Details -- Details: Minecraft Version: 14w03a Operating System: Mac OS X (x86_64) version 10.9.1 Java Version: 1.6.0_65, Apple Inc. Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc. Memory: 91968320 bytes (87 MB) / 226500608 bytes (216 MB) up to 1065025536 bytes (1015 MB) JVM Flags: 1 total; -Xmx1G Profiler Position: N/A (disabled) Player Count: 1 / 8; [nf['l3viathan2142'/1, l='Redstone', x=-21,64, y=62,84, z=-67,72]] Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.