为什么我的机器人不使用 discord.js 发送消息

Question

My bot's code works in the other chats but when I try to make it send it in the cafe chat, it wont send it and I get this in the log:

Here is the code that is not working:

bot.on('guildMemberAdd', member => {
  const channel = member.guild.channels.cache.find(channel => channel.name.includes('☕cafe'));
  if (!channel) return;
  
  const welcome = {
    color: 0xF2CC0D,
    title: `**WELCOME TO THE SERVER, ${member.user.tag} !!**`,
    description: `I hope you will enjoy it here! \n A place full of chaos and wonder!`,
    thumbnail: {
      url: member.user.avatarURL(),
    },
    fields:[
    {
      name: 'welcome',
      value: 'Welcome again to Star City, !! Feel free to go grab some self roles in #📝self-roles and go choose a color in #👘mall !!!',
      inline: false
    },
    {
      name: 'commands!',
      value: 'Do: `!help` for all the bot commands!',
      inline: false
    }
   ],
   timestamp: new Date(),
  };

  channel.send({ embed: welcome });
})

Answer 1

https://discord.js.org/#/docs/main/master/class/Channel As you can see in the docs the channel class does not have a send method Look for a text channel instead https://discord.js.org/#/docs/main/master/class/TextChannel?scrollTo=send

Answer 2

Chances are you have a non-text-based channel with a name that includes ☕cafe .

member.guild.channels.cache.find() will return a guild channel . It can be anything; a TextChannel, a VoiceChannel, a CategoryChannel, a NewsChannel, etc. Only TextChannel and NewsChannel has a send() method. If your channel is something else, you'll receive a TypeError: channel.send is not a function .

Luckily, channels have an isText() method that indicates whether the channel is text-based. You can use it in your find() 's callback:

bot.on('guildMemberAdd', member => {
  const channel = member.guild.channels.cache.find(
    (channel) => channel.name.includes('☕cafe') && channel.isText()
  );
  if (!channel) return;
  // ...
});