---- Minecraft Crash Report ----
// There are four lights!

Time: 7/3/19 8:54 PM
Description: Level dump

java.lang.Exception: dummy
	at vi.a(SourceFile:1343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:1607)
	at rv.c(SourceFile:91)
	at rv.a(SourceFile:43)
	at rv$$Lambda$2008/692203105.run(Unknown Source)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:262)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:176)
	at ce.a(SourceFile:225)
	at wa.c(SourceFile:1096)
	at wa.a(SourceFile:1083)
	at nw.a(SourceFile:37)
	at nw.a(SourceFile:9)
	at kd.a(SourceFile:15)
	at kd$$Lambda$2958/310964653.run(Unknown Source)
	at ri.run(SourceFile:18)
	at ago.h(SourceFile:139)
	at ags.h(SourceFile:23)
	at ago.p(SourceFile:114)
	at net.minecraft.server.MinecraftServer.aW(SourceFile:706)
	at net.minecraft.server.MinecraftServer.p(SourceFile:700)
	at ago.c(SourceFile:123)
	at net.minecraft.server.MinecraftServer.o(SourceFile:685)
	at net.minecraft.server.MinecraftServer.run(SourceFile:640)
	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 vi.a(SourceFile:1343)

-- Affected level --
Details:
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 0
	Level dimension: minecraft:the_nether
	Derived: true
	Level name: BreedingTest
	Level seed: 1907316616
	Level generator: ID 01 - flat, ver 0. Features enabled: true
	Level generator options: {biome:"minecraft:desert",layers:[{block:"minecraft:bedrock",height:1b},{block:"minecraft:stone",height:3b},{block:"minecraft:iron_block",height:52b}],structures:{}}
	Level spawn location: World: (8,55,8), Chunk: (at 8,3,8 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: 1084298 game time, 19914 day time
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 1 (now: false), thunder time: 1 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at vi.a(SourceFile:1343)
	at net.minecraft.server.MinecraftServer.a(SourceFile:1607)
	at rv.c(SourceFile:91)
	at rv.a(SourceFile:43)
	at rv$$Lambda$2008/692203105.run(Unknown Source)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:262)
	at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:176)
	at ce.a(SourceFile:225)
	at wa.c(SourceFile:1096)
	at wa.a(SourceFile:1083)
	at nw.a(SourceFile:37)
	at nw.a(SourceFile:9)
	at kd.a(SourceFile:15)
	at kd$$Lambda$2958/310964653.run(Unknown Source)
	at ri.run(SourceFile:18)
	at ago.h(SourceFile:139)
	at ags.h(SourceFile:23)
	at ago.p(SourceFile:114)
	at net.minecraft.server.MinecraftServer.aW(SourceFile:706)
	at net.minecraft.server.MinecraftServer.p(SourceFile:700)
	at ago.c(SourceFile:123)
	at net.minecraft.server.MinecraftServer.o(SourceFile:685)
	at net.minecraft.server.MinecraftServer.run(SourceFile:640)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 1.14.4 Pre-Release 1
	Operating System: Windows 8.1 (amd64) version 6.3
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 495381488 bytes (472 MB) / 1845493760 bytes (1760 MB) up to 2147483648 bytes (2048 MB)
	CPUs: 6
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M