bot.chat() isn't operational

[DominionDev]

• The FAQ doesn't contain a resolution to my issue

Versions

• mineflayer: 4.6.0
• server: paper FireFall, idk the version
• node: 14.16.0

Detailed description of a problem

I'm pretty new to JavaScript, so I have barely any knowledge about it, I'm way more confident in Java.
I tried to create a bot for Minecraft running on 1.19.2 which is possible since the last build, but unfortunately it seems like sending messages doesn't work in this version yet.

What did you try yet?

I really don't have an idea how to address the issue, that's why I create this issue.

I get this error:

TypeError: Serialization error for play.toServer : SizeOf error for undefined : Cannot read property 'length' of undefined
    at Object.previousMessages (eval at compile (D:\JavaScript\node_modules\protodef\src\compiler.js:258:12), <anonymous>:175:37)
    at Object.packet_chat_command (eval at compile (D:\JavaScript\node_modules\protodef\src\compiler.js:258:12), <anonymous>:559:37)
    at eval (eval at compile (D:\JavaScript\node_modules\protodef\src\compiler.js:258:12), <anonymous>:1186:64)
    at packet (eval at compile (D:\JavaScript\node_modules\protodef\src\compiler.js:258:12), <anonymous>:1235:9)
    at CompiledProtodef.sizeOf (D:\JavaScript\node_modules\protodef\src\compiler.js:89:14)
    at e.message (D:\JavaScript\node_modules\protodef\src\compiler.js:96:40)
    at tryCatch (D:\JavaScript\node_modules\protodef\src\utils.js:50:16)
    at CompiledProtodef.createPacketBuffer (D:\JavaScript\node_modules\protodef\src\compiler.js:96:20)
    at Serializer.createPacketBuffer (D:\JavaScript\node_modules\protodef\src\serializer.js:12:23)
    at Serializer._transform (D:\JavaScript\node_modules\protodef\src\serializer.js:18:18) {
  field: 'play.toServer'
}

Your current code

const mineflayer = require('mineflayer')

const options = {
  host: 'server.address', // Change this to the ip you want.
  port: 25565, // Change this to the port you want.
  username: 'nope',
  password: 'notThisTime',
  auth: 'microsoft',
  version: '1.19.2'
}

let timeToStart = Date.now();

const bot = mineflayer.createBot(options)

bot.once('spawn', () => {
    timeToStart = Date.now() - timeToStart
    console.log('Hello, I\'m '+bot.username+". I have successfully connected to "+options.host+" with version "+options.version+" in "+ timeToStart+"ms")
    bot.acceptResourcePack();

    setTimeout(() => {bot.chat('Hello')}, 15000);
  
  })

  bot.on('chat',(username,message) => {
    if (username === bot.username) return

    console.log(`${username} > ${message}`)
  })

Expected behavior

Joining on the server is working flawless, but it won't send the message "Hello" in the chat.
I only get an error telling me that the serialization went wrong.

Additional context

Add any other context about the problem here.

[frej4189]

Mineflayer does not support 1.19.2

[DominionDev]

Mineflayer does not support 1.19.2

Oh, I thought they added finally the support for 1.19.2 with the most recent update. Before it wasn't even possible to join on servers with 1.19.2, now you can.

[extremeheat]

I agree there could be a better error message here. But dupe of #2797