This relative module was not found: * ./lib-cov/fluent-ffmpeg in ./node_modules/fluent-ffmpeg/index.js

[lk220203006]

Version information

• fluent-ffmpeg version:fluent-ffmpeg@2.1.2
• ffmpeg version:
• OS:Mac

Code to reproduce

const ffmpeg = require('fluent-ffmpeg');

Electron + Vue 框架，在js中引用ffmpeg。
package.json中
"electron:serve": "vue-cli-service electron:serve",
在终端执行 npm run electron:serve 提示错误
ERROR Failed to compile with 1 errors 11:10:12

This relative module was not found:

• ./lib-cov/fluent-ffmpeg in ./node_modules/fluent-ffmpeg/index.js
  ERROR Build failed with errors.
  npm ERR! code ELIFECYCLE
  npm ERR! errno 1
  npm ERR! ai-dev-platform@0.1.0 electron:serve: vue-cli-service electron:serve
  npm ERR! Exit status 1
  npm ERR!
  npm ERR! Failed at the ai-dev-platform@0.1.0 electron:serve script.
  npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /Users/liukun/.npm/_logs/2020-04-17T03_10_12_322Z-debug.log
The terminal process terminated with exit code: 1
(note: if the problem only happens with some inputs, include a link to such an input file)

Expected results

Observed results

This relative module was not found:

• ./lib-cov/fluent-ffmpeg in ./node_modules/fluent-ffmpeg/index.js

Checklist

• I have read the FAQ
• I tried the same with command line ffmpeg and it works correctly (hint: if the problem also happens this way, this is an ffmpeg problem and you're not reporting it to the right place)
• I have included full stderr/stdout output from ffmpeg

[jmorino]

Same problem here (Electron + Vue + macOS + electron-builder).

I found that fork https://github.com/pietrop/ffmpeg-static-electron that should solve this issue, but the author doesn't seem to maintain it anymore.

[ghost]

I had the same issue - Electron, vue/cli and electron-builder - and here's how I solved the issue:

In vue.config.js I added this to the webpack configuration in the plugins property:

const webpack = require('webpack');

module.exports = {
  configureWebpack: {
    plugins: [
      new webpack.DefinePlugin({
        'process.env.FLUENTFFMPEG_COV': false
      })
    ]
  }
}

That fixed my issue.

[max-programming]

I tried the same thing but the Rollup approach and it's not working for me in Rollup. Can you suggest some way?
I am trying to bundle a nodejs app fully.

Command I ran: rollup -c --environment FLUENTFFMPEG_COV:false OR rollup -c --environment FLUENTFFMPEG_COV:0

[haoranisg]

修改 node_modules/fluent-ffmpeg/index.js

[princefishthrower]

@haoranisg does that fix the bundling issue, or is it just a suggestion?

@max-programming - I've reached the exact same point as you, trying to bundle a node package using this library with rollup and getting this error, did you every solve this or have a workaround?