1.12.2 not supported and no error displayed

Server: spigot git-Spigot-93e20b3-b8f84f3 (MC: 1.12.2) (Implementing API version 1.12.2-R0.1-SNAPSHOT), no plugins Client: npm 5.4.2

Steps to reproduce:

1. clone repository
2. run any example. In my case I did node jumper.js 192.168.0.220 25565 ChanChan
3. bot connects for a couple of seconds and then simply disconnects. I get this behavior constantly

On server side:

[22:41:21] [Server thread/INFO]: ChanChan lost connection: Disconnected
[22:41:21] [Server thread/INFO]: ChanChan left the game

I tried to debug the minecraft protocol, nothing seems off, client code is not throwing any errors.

Same goes with vanilla server

[BarnabyD]

1.12.2 seems to mostly work (it is listed as supported on minecraft-data) The issue of disconnecting 20 seconds after joining seems to be because “Keep Alive” was changed in 1.12.2. (which is defaulted to 20 seconds)

It works with 25 or more seconds, so using mineflayer you can set the “checkTimeoutInterval” option. var mineflayer = require('mineflayer'); var bot = mineflayer.createBot({ host: "localhost", // optional port: 25565, // optional username: "[e-mail]", // email and password are required only for password: "12345678", // online-mode=true servers checkTimeoutInterval: (25 * 10000) // run KeepAlive every 25 seconds });

The original 20 seconds can be found in “minecraft-protocol\src\client\keepalive.js:7” const checkTimeoutInterval = options.checkTimeoutInterval || 20 * 1000;

[rom1504]

1.13 supported