Webpacker: Module not found: Error: Can't resolve '@rails/ujs'

[lrjbrual]

Hi,

anyone knows how to solve the problem of Module not found: Error: Can't resolve '@rails/ujs' in Rails6.

I also tried to install in npm the : npm i @rails/ujs but still the same error that can't find ujs.

If you need more info, let me know.

Thanks in advance.

[jakeNiemiec]

In order to help debug, could you please post as much as you can of:

• ./package.json
• ./config/webpack/environment.js
• ./config/webpacker.yml
• ./app/javascript/packs/application.js
• the full error message (even the parts you wouldn’t think is relevant)

—to a single https://gist.github.com. Please tag me via @jakeNiemiec in a comment and I’ll try to troubleshoot any problems directly in the gist.

[lrjbrual]

Hi @jakeNiemiec I already resolved the problem. via adding : Rails: ['@rails/ujs'] in environment.js

Thanks
Cheers!

[arusa]

yarn add @rails/ujs

[hiveer]

@lrjbrual I have the same issue and this is working

environment.plugins.prepend('Provide',
  new webpack.ProvidePlugin({
    $: 'jquery',
    jQuery: 'jquery'
    Rails: '@rails/ujs'
  })
)

But I wonder why this way below is not working:

import Rails from "@rails/ujs"
Rails.start()