---- Minecraft Crash Report ---- // Everything's going to plan. No, really, that was supposed to happen. Time: 11/29/18 8:26 PM Description: Exception ticking world java.lang.AbstractMethodError: bxx$$Lambda$1108/621257072.a(Lcom/mojang/datafixers/Dynamic;)Ljava/lang/Object; at yg.a(SourceFile:18) at cat.(SourceFile:44) at cas$a.(SourceFile:81) at bxc$$Lambda$1045/457596841.load(Unknown Source) at cax.a(SourceFile:86) at bqu.a(SourceFile:614) at bqu.a(SourceFile:229) at ui.d(SourceFile:439) at ui$$Lambda$2124/478192882.get(Unknown Source) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582) at ui$$Lambda$2135/169209625.accept(Unknown Source) at java.util.ArrayList.forEach(ArrayList.java:1249) at ui.e(SourceFile:369) at net.minecraft.server.MinecraftServer.q(SourceFile:641) at net.minecraft.server.MinecraftServer.p(SourceFile:625) at net.minecraft.server.MinecraftServer.a(SourceFile:422) at dog.a(SourceFile:91) at dog.d(SourceFile:107) at net.minecraft.server.MinecraftServer.run(SourceFile:562) at java.lang.Thread.run(Thread.java:745) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Server thread Stacktrace: at yg.a(SourceFile:18) at cat.(SourceFile:44) at cas$a.(SourceFile:81) at bxc$$Lambda$1045/457596841.load(Unknown Source) at cax.a(SourceFile:86) at bqu.a(SourceFile:614) at bqu.a(SourceFile:229) at ui.d(SourceFile:439) at ui$$Lambda$2124/478192882.get(Unknown Source) at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582) at ui$$Lambda$2135/169209625.accept(Unknown Source) at java.util.ArrayList.forEach(ArrayList.java:1249) at ui.e(SourceFile:369) at net.minecraft.server.MinecraftServer.q(SourceFile:641) at net.minecraft.server.MinecraftServer.p(SourceFile:625) -- Affected level -- Details: Level name: New Villages 3 All players: 0 total; [] Chunk stats: ServerChunkCache: 2025 Level seed: 454545 Level generator: ID 00 - default, ver 1. Features enabled: true Level generator options: {} Level spawn location: World: (32,65,241), Chunk: (at 0,4,1 in 2,15; contains blocks 32,0,240 to 47,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 13803 game time, 13803 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 44933 (now: false), thunder time: 87461 (now: false) Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true Stacktrace: at net.minecraft.server.MinecraftServer.b(SourceFile:782) at net.minecraft.server.MinecraftServer.a(SourceFile:716) at dog.a(SourceFile:128) at net.minecraft.server.MinecraftServer.run(SourceFile:582) at java.lang.Thread.run(Thread.java:745) -- System Details -- Details: Minecraft Version: 18w48a Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 473481728 bytes (451 MB) / 1509949440 bytes (1440 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Player Count: 0 / 8; [] Data Packs: vanilla Type: Integrated Server (map_client.txt) Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.