Cannot read property 'members' of undefined

[cake_playz]

I’m trying to kind of make a ,kill command for a discord bot. Every time I try and run it, it comes out with

TypeError: Cannot read property ‘members’ of undefined

client.on("message", message => {
  if (message.content.startsWith(prefix + "kill")) {
    let user = message.mention.members.first();
    let messanger = message.member;
    message.channel.send(messanger.username + "oofed" + "<@" + user.id + ">");
  }
});

Does anyone know why this is happening and how to fix it?

Discord V12

[tleylan]

it should be message.mentions . Minor typo in “messanger” if you feel like correcting that as well.

[mustafa]

@cake_playz

    let messanger = message.member;

he defined messanger here

[tleylan]

I pointed out as an aside that he misspelled the variable “messenger” as “messanger” but it can be left that way if he prefers it.

[Joprocorp]

If you are using the latest release of discord.js, there is no .mention property in a message object (as far as I know, there were never so I think its just a mispell. But I’m not sure).

You want to use .mentions described here.
For an implementation example, see this guide here.