Send a message to channel if a user switches voice channel - discord

Question

I tried it on this way, but the bot gives me an error:
let newUserChannel = newMember.voiceChannel
^
TypeError: Cannot read property 'voiceChannel' of undefined
bot.on('voiceStateUpdate', (oldMember, newMember) => {
let newUserChannel = newMember.voiceChannel
let oldUserChannel = oldMember.voiceChannel
if(oldUserChannel === undefined && newUserChannel !== undefined) {
bot.sendMessage({
to: "475330828466126848",
message: "User went form Channel" + oldUserChannel + "to the new"
+ newUserChannel + "Channel"
});
}
})
It does not work.
My goal is to log all voice channel switches in a single text channel I made for that.
var Discord = require('discord.js');
var logger = require("winston");
var auth = require("./auth.json");
// Configure logger settings
logger.remove(logger.transports.Console);
logger.add(new logger.transports.Console, {
colorize: true});
logger.level = "debug";
// Initialize Discord Bot
var bot = new Discord.Client({
token: auth.token,
autorun: true
});
bot.on("ready", function (evt) {
logger.info("Connected");
logger.info("Logged in as: ");
logger.info(bot.username + " – (" + bot.id + ")");
});
bot.on('voiceStateUpdate', (oldMember, newMember) => {
let newUserChannel = newMember.voiceChannel
let oldUserChannel = oldMember.voiceChannel
if(!oldUserChannel && newUserChannel) {
bot.channels.get('475330828466126848').send("User went form Channel" + oldUserChannel.name + "to the new"
+ newUserChannel.name + "Channel");
}
});

Answer 1

bot.sendMessage is deprecated.
Try this one:
bot.on('voiceStateUpdate', (oldMember, newMember) => {
let newUserChannel = newMember.voiceChannel
let oldUserChannel = oldMember.voiceChannel
if(!oldUserChannel && newUserChannel) {
bot.channels.get('475330828466126848').send("User went form Channel" + oldUserChannel.name + "to the new"
+ newUserChannel.name + "Channel");
}
})
Please specify your error next time.
I used the the .send property to send your message to this channel.