---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 2018/7/17 上午10:19
Description: Exception ticking world

java.lang.IllegalArgumentException: bound must be positive
	at java.base/java.util.Random.nextInt(Unknown Source)
	at axz.a(SourceFile:196)
	at axz.a(SourceFile:98)
	at tc.i_(SourceFile:196)
	at net.minecraft.server.MinecraftServer.w(SourceFile:690)
	at net.minecraft.server.MinecraftServer.v(SourceFile:623)
	at dft.v(SourceFile:157)
	at net.minecraft.server.MinecraftServer.run(SourceFile:526)
	at java.base/java.lang.Thread.run(Unknown Source)


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

-- Head --
Thread: Server thread
Stacktrace:
	at java.base/java.util.Random.nextInt(Unknown Source)
	at axz.a(SourceFile:196)
	at axz.a(SourceFile:98)
	at tc.i_(SourceFile:196)

-- Affected level --
Details:
	Level name: 新的世界
	All players: 1 total; [te['CoolHerobrine'/2, l='新的世界', x=100.00, y=49.00, z=0.00]]
	Chunk stats: ServerChunkCache: 29 Drop: 0
	Level seed: 8946083676269238396
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 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: 0 game time, 0 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at net.minecraft.server.MinecraftServer.w(SourceFile:690)
	at net.minecraft.server.MinecraftServer.v(SourceFile:623)
	at dft.v(SourceFile:157)
	at net.minecraft.server.MinecraftServer.run(SourceFile:526)
	at java.base/java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.13-pre9
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 10.0.1, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), "Oracle Corporation"
	Memory: 856612736 bytes (816 MB) / 1509949440 bytes (1440 MB) up to 4294967296 bytes (4096 MB)
	JVM Flags: 11 total; -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M -XX:-UseAdaptiveSizePolicy -XX:-OmitStackTraceInFastThrow -Xmn128m -Xmx4096m -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [te['CoolHerobrine'/2, l='新的世界', x=100.00, y=49.00, z=0.00]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.