Conflict: Multiple assets emit to the same filename

Question

I\'m a webpack rookie who wants to learn all about it. I came across a conflict when running my webpack telling me:

ERROR in chunk html [entry] app.js Confl

Answer 1

The same error in a Vue.js project when doing e2e with Karma. The page was served using a static template index.html with /dist/build.js. And got this error running Karma.

The command to issue Karma using package.json was:

"test": "cross-env BABEL_ENV=test CHROME_BIN=$(which chromium-browser) karma start --single-run"

The output configuration in webpack.config.js was:

 module.exports = {
  output: {
   path: path.resolve(__dirname, './dist'),
   publicPath: '/dist/',
   filename: 'build.js'
  },
  ...
 }

My solution: inspired by the Evan Burbidge's answer I appended the following at the end of webpack.config.js:

if (process.env.BABEL_ENV === 'test') {
  module.exports.output.filename = '[name].[hash:8].js'
}

And then it eventually worked for both page serving and e2e.