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

Time: 3/11/19 12:58 PM
Description: Ticking block entity

java.lang.IllegalArgumentException: Cannot get property brw{name=enabled, clazz=class java.lang.Boolean, values=[true, false]} as it does not exist in Block{minecraft:dropper}
	at brd.c(SourceFile:95)
	at bpw.a(SourceFile:118)
	at bpw.g(SourceFile:109)
	at bdf.I(SourceFile:635)
	at uv.a(SourceFile:387)
	at net.minecraft.server.MinecraftServer.b(SourceFile:837)
	at net.minecraft.server.MinecraftServer.a(SourceFile:776)
	at dtc.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:634)
	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 brd.c(SourceFile:95)
	at bpw.a(SourceFile:118)
	at bpw.g(SourceFile:109)

-- Block entity being ticked --
Details:
	Name: minecraft:hopper // bpw
	Block: Block{minecraft:dropper}[facing=east,triggered=true]
	Block location: World: (27,76,1372), Chunk: (at 11,4,12 in 1,85; contains blocks 16,0,1360 to 31,255,1375), Region: (0,2; contains chunks 0,64 to 31,95, blocks 0,0,1024 to 511,255,1535)
	Block: Block{minecraft:dropper}[facing=east,triggered=true]
	Block location: World: (27,76,1372), Chunk: (at 11,4,12 in 1,85; contains blocks 16,0,1360 to 31,255,1375), Region: (0,2; contains chunks 0,64 to 31,95, blocks 0,0,1024 to 511,255,1535)
Stacktrace:
	at bdf.I(SourceFile:635)
	at uv.a(SourceFile:387)

-- Affected level --
Details:
	Level name: world
	All players: 1 total; [uw['Feb1s'/208, l='world', x=-123.56, y=4.00, z=1436.30]]
	Chunk stats: ServerChunkCache: 3696
	Level seed: 1683783875
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: {}
	Level spawn location: World: (32,69,210), Chunk: (at 0,4,2 in 2,13; contains blocks 32,0,208 to 47,255,223), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 6385091 game time, 6536568 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 65058 (now: false), thunder time: 63824 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.b(SourceFile:837)
	at net.minecraft.server.MinecraftServer.a(SourceFile:776)
	at dtc.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:634)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 19w09a
	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: 845100208 bytes (805 MB) / 1979711488 bytes (1888 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: 1 / 8; [uw['Feb1s'/208, l='world', x=-123.56, y=4.00, z=1436.30]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.