因此，当新成员加入Guild[discord 服务器] 时。Bot应该在某个频道（ID = 766716351007686696）发送一条消息，直接给他们发送一条消息，然后添加一个角色（Human Bean）。这是我现在拥有的代码，它不起作用，底部有错误

client.on('guildMemberAdd', member =>{
    const channel = message.guild.channels.cache.find(c => c.id === "766716351007686696")
    const channelwelcomeEmbed = new Discord.MessageEmbed()
        .setColor('#ffd6d6')
        .setTitle('Welcome!')
        .setDescription(`${member} just joined the discord! Make sure to read #rules!`)
        .setTimestamp();
    channel.send(channelwelcomeEmbed);
    const dmwelcomeEmbed = new Discord.MessageEmbed()
        .setColor('#ffd6d6')
        .setTitle('Welcome!')
        .setDescription("For Help Using @Pro Bot#7903, Send The Command `!help` In Server")
        .setTimestamp();
    member.send(dmwelcomeEmbed);
    let role6 = message.guild.roles.cache.find(role => role.name == "Human Bean"); //BASIC ROLE, EVERYONE GETS IT
    if(!role6) return message.reply("Couldn't find that Role .")
    member.roles.add(role6);
});

错误信息是；

    const channel = message.guild.channels.cache.find(c => c.id === "766716351007686696")
                    ^

ReferenceError: message is not defined