const Discord = require("discord.js");
const Bot = new Discord.Client({Intents:[Discord.Intents.FLAGS.GUILD_MEMBERS, Discord.Intents.FLAGS.GUILDS]})

Bot.on('ready', () => {
    console.log("The bot is online") 

    let commands = Bot.application.commands;

    commands.create({
        name: "hello" ,
        description: "reply hello to the user",
        options: [
            {
                name: "person",
                description: "The user you want to say hello to",
                require: true,
                type: Discord.Constants.ApplicationCommandOptionTypes.USER

            }
        ]
    })
 })
    

    Bot.on('interactionCreate', interaction => {
     if(!interaction.isCommand()) return;
     let name  = interaction.commandName
     let options = interaction.options;

     if(name == "hello") {
        interaction.reply({
            content: "Hello",
            ephemeral: false
        })
    }
    if(name == "sayhello"){
        let user = options.getUser('person');

        interaction.reply({
            content: 'Hello ${user.username}
        })
    }
})

bot.login("token")

CodePudding user response：

The intents is option is lowercase, not capitalised. See ClientOptions.

CodePudding user response：

Since discord.js v13, you need to provide intents when declaring the client. They were introduced by Discord so that developers can choose what type of data the bot will need to receive. All you have to do is add intents when declaring the client like:

const client = new DiscordJS.Client({
  intents: [
    Discord.Intents.FLAGS.GUILDS,
    Discord.Intents.FLAGS.GUILD_MESSAGES
  ]
})

And also, as pointed by @Richie Bendall, you have capitalised the I when declaring the intents. You can learn more about intents in here => Gateway Intents | Discord.js