I want to make my Discord bot join voice chat, but every time I run the mand, I get an error message in the log(cmd) saying, FFMPEG not found.

Picture of the error:

This is the code:

client.on('message', message => {
  // Voice only works in guilds, if the message does not e from a guild,
  // we ignore it
  if (!message.guild) return;

  if (message.content === '/join') {
    // Only try to join the sender's voice channel if they are in one themselves
    if (message.member.voiceChannel) {
      message.member.voiceChannel.join()
        .then(connection => { // Connection is an instance of VoiceConnection
          message.reply('I have successfully connected to the channel!');
        })
        .catch(console.log);
    } else {
      message.reply('You need to join a voice channel first!');
    }
  }
});

this is my package.json file:

{
  "name": "x",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "start": "node index.js",
    "dev": "nodemon index.js"
  },
  "dependencies": {
    "discord.js": "^11.4.2",
    "dotenv": "^6.2.0",
    "ffmpeg": "0.0.4",
    "opusscript": "0.0.6"
  },
  "devDependencies": {
    "nodemon": "^1.18.9"
  }
}

I want to make my Discord bot join voice chat, but every time I run the mand, I get an error message in the log(cmd) saying, FFMPEG not found.

Picture of the error:

This is the code:

client.on('message', message => {
  // Voice only works in guilds, if the message does not e from a guild,
  // we ignore it
  if (!message.guild) return;

  if (message.content === '/join') {
    // Only try to join the sender's voice channel if they are in one themselves
    if (message.member.voiceChannel) {
      message.member.voiceChannel.join()
        .then(connection => { // Connection is an instance of VoiceConnection
          message.reply('I have successfully connected to the channel!');
        })
        .catch(console.log);
    } else {
      message.reply('You need to join a voice channel first!');
    }
  }
});

this is my package.json file:

{
  "name": "x",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "start": "node index.js",
    "dev": "nodemon index.js"
  },
  "dependencies": {
    "discord.js": "^11.4.2",
    "dotenv": "^6.2.0",
    "ffmpeg": "0.0.4",
    "opusscript": "0.0.6"
  },
  "devDependencies": {
    "nodemon": "^1.18.9"
  }
}

• javascript
• ffmpeg
• discord
• discord.js

• 1 Do you have a package.json? Do you have any ffmpeg related dependencies in that file? – zero298 Commented Feb 12, 2019 at 20:39

3 Answers 3

Introduction to Voice Voice in discord.js can be used for many things, such as music bots, recording or relaying audio.

In discord.js, you can use voice by connecting to a VoiceChannel to obtain a VoiceConnection, where you can start streaming and receiving audio.

To get started, make sure you have:

FFmpeg - npm install ffmpeg-binaries
an opus encoder, choose one from below:

• npm install node-opus (better performance)
• npm install opusscript (a good network connection)

The preferred opus engine is node-opus, as it performs significantly better than opusscript. When both are available, discord.js will automatically choose node-opus. Using opusscript is only remended for development environments where node-opus is tough to get working. For production bots, using node-opus should be considered a necessity, especially if they're going to be running on multiple servers.

FFmpeg is a convenient tool to work with audio/video/image/subtitle stuff, in this context this tool is required for extracting audio from an arbitrary container for bitstream (eg. mp4, mkv, flv, ogg) to a discord patible VoIP codec OPUS.

Though it's intended be platform independent but for each platform requires different procedures, Note that: I only listed those platforms with which I have expertise with.

GNU/Linux

You mostly use the package manager to install it along with its dependencies, or you can just use the way of manually piling the code with the steps described at here.

# Ubuntu / Debian / Linux Mint
sudo apt install ffmpeg

# ArchLinux / Manjaro / Anarchy
sudo pacman -S ffmpeg

# Gentoo / Funtoo
USE=opus sudo emerge ffmpeg

Windows

Windows is not easy as GNU/Linux, you either manually satisfy all dependencies then pile all the stuff all by yourself with MSVC or use Cygwin or Msys2 to pile. An alternative way is to download pre-piled windows binaries from Zeranoe's website. Due to Zeranoe's website is closed, download from Gyan's website or anywhere else.

This will download you a Zip archive which you've to extract and copy all contents of the bin/ folder, those are the FFmpeg binaries. Optionally, store them at a file path which is listed in the PATH environment variable, to run it simply as ffmpeg in a shell.

I had a problem with playing stream in Discord.js even thought I installed ffmpeg, so here's a possible fix, atleast in windows if ffmpeg mand can't be run alone in CMD, then I went to node_modules\prism-media\src\core\FFmpeg.js on line 115 and there is an array of each possible directory of what to use e.g ffmpeg, so I changed from

}, 'ffmpeg', 'avconv', './ffmpeg', './avconv'];

to

}, 'ffmpeg', 'avconv', './ffmpeg', 'C:/ffmpeg/ffmpeg', './avconv'];

and it worked fine! :>