Cannot find module '@ffmpeg/core'

[letsfire]

Describe the bug

INFO Launching Electron... [info] use ffmpeg.wasm v0.9.8 [info] load ffmpeg-core [info] loading ffmpeg-core [info] fetch ffmpeg.wasm-core script from @ffmpeg/core (node:14408) UnhandledPromiseRejectionWarning: Error: Cannot find module '@ffmpeg/core'

Desktop (please complete the following information):

• OS: [win10]
• Browser [Electron]
• Version [11.4.7]

[ghost]

@letsfire It's the same problem. Do you use webpack?

[letsfire]

@r-asada-ab vue-cli-service，it based on webpack ? i lack knowledge about JS. I do not know why，@ffmpeg/core is exist，but cannot find

[nishStoryDigital]

I faced a similar issue. After referrring the docs, I found that providing corePath field in the createFFmpeg function solved the issue for me.

   const ffmpeg = createFFmpeg({
        corePath: 'https://unpkg.com/@ffmpeg/[email protected]/dist/ffmpeg-core.js',
        log: true,
    });

[gbayarri]

Same problem here, running Vue JS on top of electron and trying to load ffmpeg in background. I've tried to change corePath to relative and absolute paths of the ffmpeg-core.js, but the message is always the same:

UnhandledPromiseRejectionWarning: Error: Cannot find module '/path/to/ffmpeg-core.js'

It works perfectly in Vue JS client-side, Electron JS without Vue JS and Node JS.

Did someone else get through that?

[clonecorp]

Same problem here.

Tried all versions of @ffmpeg/ffmpeg and @ffmpeg/core. Tried it with and without the corePath parameter. Tried with importing from the unpkg URL, tried downloading the assets and using them as static files. In all cases I end up with an error like: Cannot find module '@ffmpeg/core' or Cannot find module '@ffmpeg/core/dist/ffmpeg-core.js'

I suspect the package to be not working for most people because of this.

Details:

• Using Vite 3.1.0
• Using the package on the server-side
• The package works in development mode but not in production mode

[shn-dev-1]

I have the same situation as @clonecorp. Whenever I use corePath in the ffmpeg options it can never find the module, even if I've verified the file exists. Using a simple index.js file to instantiate the ffmpeg object, Node v19.1.0.

[phenomen]

Same. I installed

  "@ffmpeg/ffmpeg": "^0.11.6",
  "@ffmpeg/core": "^0.11.0"

Using createFFmpeg() without corePath results in:

TypeError: fetch failed
    at Object.fetch (node:internal/deps/undici/undici:11413:11)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5) {
  cause: Error: unknown scheme

But if I try to provide a corePath i.e

corePath: "https://unpkg.com/@ffmpeg/[email protected]/dist/ffmpeg-core.js",

I get

Error: Cannot find module 'https://unpkg.com/@ffmpeg/[email protected]/dist/ffmpeg-core.js'
Require stack:
- D:\Github\vttc\node_modules\@ffmpeg\ffmpeg\src\node\getCreateFFmpegCore.js
- D:\Github\vttc\node_modules\@ffmpeg\ffmpeg\src\node\index.js
- D:\Github\vttc\node_modules\@ffmpeg\ffmpeg\src\createFFmpeg.js
- D:\Github\vttc\node_modules\@ffmpeg\ffmpeg\src\index.js

[DerTimonius]

Having the same issue on a next.js project

[ranajahanzaib]

Having the same issue on a next.js project

[harshcardealershipguy]

Manually installing @ffmpeg/core fixed it for me

npm -i @ffmpeg/core

[benz2012]

Same. I tried both with and without core since I wasn't sure why it was needed to be installed if it's not imported like a normal dependency. But it is indeed described to be installed in the README

$ npm install @ffmpeg/ffmpeg @ffmpeg/core

[shn-dev-1]

I was able to solve this issue on my express server by downgrading from Node 19 to Node 16. I am using these versions of npm ffmpeg libraries, and not using an external corePath option like some of the other suggestions:

    "@ffmpeg/core": "^0.10.0",
    "@ffmpeg/ffmpeg": "^0.10.0",