尝试 saveFile 时的 fluent-ffmpeg typeError

如何解决尝试 saveFile 时的 fluent-ffmpeg typeError

我正在尝试使用 ytdl 保存 YouTube 视频，并使用 .pipe() 将其与流一起传递以使用流保存。

无论我做什么，我总是收到下面的错误。

我已经尝试在 .savetoFile() 中使用 .save() 和 .pipe()。

(node:1) UnhandledPromiseRejectionWarning: TypeError [ERR_INVALID_ARG_TYPE]: The "file" argument must be of type string. Received an instance of Object
    at validateString (internal/validators.js:124:11)
    at normalizeSpawnArguments (child_process.js:435:3)
    at spawn (child_process.js:575:13)
    at spawnWithSignal (child_process.js:714:17)
    at /app/available_modules/1623080324000/fluent-ffmpeg/lib/processor.js:152:24
    at FfmpegCommand.proto._getFfmpegPath (/app/available_modules/1623080324000/fluent-ffmpeg/lib/capabilities.js:90:14)
    at FfmpegCommand.proto._spawnFfmpeg (/app/available_modules/1623080324000/fluent-ffmpeg/lib/processor.js:132:10)
    at FfmpegCommand.proto.availableFormats.proto.getAvailableFormats (/app/available_modules/1623080324000/fluent-ffmpeg/lib/capabilities.js:517:10)
    at /app/available_modules/1623080324000/fluent-ffmpeg/lib/capabilities.js:568:14
    at nextTask (/app/available_modules/1623080324000/fluent-ffmpeg/node_modules/async/dist/async.js:4576:27)
    at Object.waterfall (/app/available_modules/1623080324000/fluent-ffmpeg/node_modules/async/dist/async.js:4587:9)
    at Object.awaitable [as waterfall] (/app/available_modules/1623080324000/fluent-ffmpeg/node_modules/async/dist/async.js:208:32)
    at FfmpegCommand.proto._checkCapabilities (/app/available_modules/1623080324000/fluent-ffmpeg/lib/capabilities.js:565:11)
    at /app/available_modules/1623080324000/fluent-ffmpeg/lib/processor.js:298:14
    at nextTask (/app/available_modules/1623080324000/fluent-ffmpeg/node_modules/async/dist/async.js:4576:27)
    at Object.waterfall (/app/available_modules/1623080324000/fluent-ffmpeg/node_modules/async/dist/async.js:4587:9)
    at Object.awaitable [as waterfall] (/app/available_modules/1623080324000/fluent-ffmpeg/node_modules/async/dist/async.js:208:32)
    at FfmpegCommand.proto._prepare (/app/available_modules/1623080324000/fluent-ffmpeg/lib/processor.js:295:11)
    at FfmpegCommand.proto.exec.proto.execute.proto.run (/app/available_modules/1623080324000/fluent-ffmpeg/lib/processor.js:431:10)
    at FfmpegCommand.proto.writetoStream.proto.pipe.proto.stream (/app/available_modules/1623080324000/fluent-ffmpeg/lib/recipes.js:64:34)
(Use `node --trace-warnings ...` to show where the warning was created)

const ffmpeg = require('fluent-ffmpeg')
const ffmpegPath = require('@ffmpeg-installer/ffmpeg')
const fs = require('fs')
const ytdl = require('ytdl-core')

ffmpeg.setFfmpegPath(ffmpegPath)

async function get() {
    ffmpeg(await ytdl('LuchnQtK86U'))
    .pipe(fs.createWriteStream('track.mp3'))
}

get()