---- Minecraft Crash Report ---- // Quite honestly, I wouldn't worry myself about that. Time: 3/10/16 10:22 AM Description: Ticking entity java.lang.NullPointerException: Ticking entity at vf.m(SourceFile:254) at vf.l(SourceFile:189) at sb.cm(SourceFile:639) at sa.n(SourceFile:1757) at sb.n(SourceFile:488) at ro.n(SourceFile:134) at vw.n(SourceFile:41) at sa.m(SourceFile:1619) at sb.m(SourceFile:276) at aht.a(SourceFile:1516) at lp.a(SourceFile:717) at aht.g(SourceFile:1494) at aht.k(SourceFile:1384) at lp.k(SourceFile:550) at net.minecraft.server.MinecraftServer.D(SourceFile:625) at net.minecraft.server.MinecraftServer.C(SourceFile:553) at byl.C(SourceFile:154) at net.minecraft.server.MinecraftServer.run(SourceFile:457) at java.lang.Thread.run(Thread.java:745) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at vf.m(SourceFile:254) at vf.l(SourceFile:189) at sb.cm(SourceFile:639) at sa.n(SourceFile:1757) at sb.n(SourceFile:488) at ro.n(SourceFile:134) at vw.n(SourceFile:41) at sa.m(SourceFile:1619) at sb.m(SourceFile:276) at aht.a(SourceFile:1516) at lp.a(SourceFile:717) at aht.g(SourceFile:1494) -- Entity being ticked -- Details: Entity Type: Cow (vy) Entity ID: 8521 Entity Name: Cow Entity's Exact location: -29.32, 68.00, 373.39 Entity's Block location: World: (-30,68,373), Chunk: (at 2,4,5 in -2,23; contains blocks -32,0,368 to -17,255,383), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Entity's Momentum: 0.04, -0.08, 0.02 Entity's Passengers: [] Entity's Vehicle: ~~ERROR~~ NullPointerException: null Stacktrace: at aht.k(SourceFile:1384) at lp.k(SourceFile:550) -- Affected level -- Details: Level name: Jelkin Ultimate Survival 1.9.1p1 All players: 1 total; [lr['TheTamedWolf'/8694, l='Jelkin Ultimate Survival 1.9.1p1', x=-23.06, y=69.00, z=378.22]] Chunk stats: ServerChunkCache: 426 Drop: 0 Level seed: -8362653730949692996 Level generator: ID 00 - default, ver 1. Features enabled: true Level generator options: Level spawn location: World: (-56,64,256), Chunk: (at 8,4,0 in -4,16; contains blocks -64,0,256 to -49,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511) Level time: 5496140 game time, 6171070 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 160093 (now: false), thunder time: 46587 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Stacktrace: at net.minecraft.server.MinecraftServer.D(SourceFile:625) at net.minecraft.server.MinecraftServer.C(SourceFile:553) at byl.C(SourceFile:154) at net.minecraft.server.MinecraftServer.run(SourceFile:457) at java.lang.Thread.run(Thread.java:745) -- System Details -- Details: Minecraft Version: 1.9.1-pre1 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 312820464 bytes (298 MB) / 857018368 bytes (817 MB) up to 2093809664 bytes (1996 MB) JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn512M IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94 Profiler Position: N/A (disabled) Player Count: 1 / 8; [lr['TheTamedWolf'/8694, l='Jelkin Ultimate Survival 1.9.1p1', x=-23.06, y=69.00, z=378.22]] Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.