No field with type net.minecraft.server.v1_15_R1.DataWatcher exists in class PacketPlayOutSpawnEntityLiving

[bundabrg]

Description and relevant errors:

Dev of BetonQuest here. I'm having issues with 1.15.1 when spawning an armourstand.

10:27:33 [INFO] [s2-lobby] [10:27:33 WARN]: [BetonQuest] Task #224 for BetonQuest v1.11-dev generated an exception
10:27:33 [INFO] [s2-lobby] com.comphenix.protocol.reflect.FieldAccessException: No field with type net.minecraft.server.v1_15_R1.DataWatcher exists in class PacketPlayOutSpawnEntityLiving.
10:27:33 [INFO] [s2-lobby]     at com.comphenix.protocol.reflect.StructureModifier.writeInternal(StructureModifier.java:363) ~[?:?]
10:27:33 [INFO] [s2-lobby]     at com.comphenix.protocol.reflect.StructureModifier.write(StructureModifier.java:343) ~[?:?]
10:27:33 [INFO] [s2-lobby]     at pl.betoncraft.betonquest.compatibility.protocollib.wrappers.WrapperPlayServerSpawnEntityLiving.setMetadata(WrapperPlayServerSpawnEntityLiving.java:311) ~[?:?]
10:27:33 [INFO] [s2-lobby]     at pl.betoncraft.betonquest.compatibility.protocollib.conversation.MenuConvIO.start(MenuConvIO.java:190) ~[?:?]
10:27:33 [INFO] [s2-lobby]     at pl.betoncraft.betonquest.compatibility.protocollib.conversation.MenuConvIO.display(MenuConvIO.java:313) ~[?:?]
10:27:33 [INFO] [s2-lobby]     at pl.betoncraft.betonquest.conversation.Conversation$1.run(Conversation.java:269) ~[?:?]
10:27:33 [INFO] [s2-lobby]     at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftTask.run(CraftTask.java:84) ~[patched_1.15.1.jar:git-Paper-25]
10:27:33 [INFO] [s2-lobby]     at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:452) ~[patched_1.15.1.jar:git-Paper-25]
10:27:33 [INFO] [s2-lobby]     at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1179) ~[patched_1.15.1.jar:git-Paper-25]
10:27:33 [INFO] [s2-lobby]     at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:417) ~[patched_1.15.1.jar:git-Paper-25]
10:27:33 [INFO] [s2-lobby]     at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1106) ~[patched_1.15.1.jar:git-Paper-25]
10:27:33 [INFO] [s2-lobby]     at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:933) ~[patched_1.15.1.jar:git-Paper-25]
10:27:33 [INFO] [s2-lobby]     at java.lang.Thread.run(Thread.java:834) [?:?]

The relevant line in BQ that triggers this which then calls the wrapper here

Let me know if I can provide any assistance.

[dmulloy2]

Mojang removed data watchers from the packet in 1.15. BQ needs to update and take that into account. Nothing we can do on the ProtocolLib side.

[bundabrg]

Thanks, I'll do some research on what to change then. TBH I don't yet quite get Datawatchers and used it purely to make the armorstand invisible.

[SimonIT]

Hello, I'm using a lib called NameTagChanger by Alvin-LB which uses DataWatchers at this line:
https://github.com/Alvin-LB/NameTagChanger/blob/80d19924bf492dfde0b4b7c1936a633e4a854bb9/src/main/java/com/bringholm/nametagchanger/ProtocolLibPacketHandler.java#L140
What's the alternative/solution so I can fix it myself? I'm not very familiar with ProtocolLib

[dmulloy2]

@SimonIT essentially you have to send a separate metadata packet with that data

[SimonIT]

Thank you. I will try it