Invalid arg type error 'The "file" argument must be of type string'

[Ravenwulf]

Hey, I can't find any solutions to this online so I figured i'd ask here.

When I run the below code in my discord.js bot, I receive the below error and I have no idea how to fix it or if the problem is even on my end.

My code works when a user types $queue <youtube url>

My Code

const ytdl = require('ytdl-core');
const streamOptions = {
    seek: 0,
    volume: 1
};
var musicUrls = [];
bot.on('message', async msg =>{
    if(msg.author.bot) return;
    if(msg.content.substring(0,PREFIX.length) === '$'){
        let args = msg.content.substring(PREFIX.length).split(" ");
        switch(args[0]){
            case 'queue':
                let url = args[1]
                let voiceChannel = msg.guild.channels.find(channel => channel.id === '582764408611143700');

                if(ytdl.validateURL(url)){
                    console.log("Valid URL!");
                    let flag = musicUrls.some(element => element === url);
                    if(!flag){
                        musicUrls.push(url);
                        if(voiceChannel != null){
                            if(voiceChannel.connection){
                                console.log("Connection exists.");
                                const embed = new Discord.RichEmbed();
                                embed.setAuthor(client.user.username, client.user.displayAvatarURL);
                                embed.setDescription("You've successfully added to the queue!");
                                msg.channel.send(embed);
                            }else{
                                try{
                                    const voiceConnection = await voiceChannel.join();
                                    await playSong(msg.channel, voiceConnection, voiceChannel);
                                }catch(ex){
                                    console.log(ex);
                                }
                            }
                        }
                    }
                }
            break;
            default:
            break;
        }
    }
});
async function playSong(messageChannel, voiceConnection, voiceChannel){
    const stream = ytdl(musicUrls[0], {filter : 'audioonly'});
    const dispatcher = voiceConnection.playStream(stream, streamOptions);

}

The Error

TypeError [ERR_INVALID_ARG_TYPE]: The "file" argument must be of type string. Received type object
    at validateString (internal/validators.js:112:11)
    at normalizeSpawnArguments (child_process.js:398:3)
    at Object.spawn (child_process.js:534:16)
    at new FfmpegProcess (E:\Coding Stuff\DiscordBot\node_modules\prism-media\src\transcoders\ffmpeg\FfmpegProcess.js:14:33)
    at FfmpegTranscoder.transcode (E:\Coding Stuff\DiscordBot\node_modules\prism-media\src\transcoders\ffmpeg\Ffmpeg.js:34:18)
    at MediaTranscoder.transcode (E:\Coding Stuff\DiscordBot\node_modules\prism-media\src\transcoders\MediaTranscoder.js:27:31)
    at Prism.transcode (E:\Coding Stuff\DiscordBot\node_modules\prism-media\src\Prism.js:13:28)
    at AudioPlayer.playUnknownStream (E:\Coding Stuff\DiscordBot\node_modules\discord.js\src\client\voice\player\AudioPlayer.js:97:35)
    at VoiceConnection.playStream (E:\Coding Stuff\DiscordBot\node_modules\discord.js\src\client\voice\VoiceConnection.js:478:24)
    at playSong (E:\Coding Stuff\DiscordBot\index.js:143:40) {

I understand what the error is trying to tell me but it seems to me that I am passing a string so...

[fent]

the stack trace shows the error is coming from prism-media. I tried looking at the source code from that line, but it looks like that file is no longer there

https://github.com/amishshah/prism-media/tree/master/src

likely you're using an older version of prism-media

[Ravenwulf]

So what do you suggest I do to fix it? I already installed the latest version of ytdl. Is there a way to easily get the new version of prism-media w/o risk of screwing something up?

[fent]

look at what depends on it that you have, and update that. it's probably discord.js. and then make sure it's on its latest version by checking with npm version prism-media

[Ravenwulf]

Well, I tried to do that and now i'm getting this error. Forgive me, I'm not used to this side of programming. I couldnt find any object declarations so im not sure why its telling me that Prism is not a constructor.

2020-02-29T06:49:18.362690+00:00 app[worker.1]: TypeError: Prism is not a constructor
2020-02-29T06:49:18.362692+00:00 app[worker.1]:     at new VoiceConnection (/app/node_modules/discord.js/src/client/voice/VoiceConnection.js:46:18)
2020-02-29T06:49:18.362693+00:00 app[worker.1]:     at /app/node_modules/discord.js/src/client/voice/ClientVoiceManager.js:63:22
2020-02-29T06:49:18.362693+00:00 app[worker.1]:     at new Promise (<anonymous>)
2020-02-29T06:49:18.362695+00:00 app[worker.1]:     at ClientVoiceManager.joinChannel (/app/node_modules/discord.js/src/client/voice/ClientVoiceManager.js:45:12)
2020-02-29T06:49:18.362695+00:00 app[worker.1]:     at VoiceChannel.join (/app/node_modules/discord.js/src/structures/VoiceChannel.js:130:30)
2020-02-29T06:49:18.362696+00:00 app[worker.1]:     at Client.<anonymous> (/app/index.js:124:80)
2020-02-29T06:49:18.362696+00:00 app[worker.1]:     at Client.emit (events.js:323:22)
2020-02-29T06:49:18.362697+00:00 app[worker.1]:     at MessageCreateHandler.handle (/app/node_modules/discord.js/src/client/websocket/packets/handlers/MessageCreate.js:9:34)
2020-02-29T06:49:18.362736+00:00 app[worker.1]:     at WebSocketPacketManager.handle (/app/node_modules/discord.js/src/client/websocket/packets/WebSocketPacketManager.js:105:65)
2020-02-29T06:49:18.362737+00:00 app[worker.1]:     at WebSocketConnection.onPacket (/app/node_modules/discord.js/src/client/websocket/WebSocketConnection.js:333:35)

And seriously thanks for helping man, this isn't even really your problem but the fact that you were willing to help me is awfully humbling.

[fent]

the syntax for the new version of prism updated. look at the files in the stack trace that are yours. in this case, app/index.js