ReferenceError: regeneratorRuntime is not defined

[JaceHensley]

When running this I'm hitting the error ReferenceError: regeneratorRuntime is not defined. I think this has to do with how the library is being built. You can work around this by configuring babel but that seems like a lot of overhead for consumers.

[tannerlinsley]

I'll double check the babel implementation, but it should be including all of that in the build.

[tannerlinsley]

Double checked and this should be fine as is. This is likely because you are compiling to a target that needs babel-polyfill.

[dusty]

I'm having the same issue. Here is my browserlistrc. Any suggestions on how to get this working?

> 1%
not op_mini all
not dead
not ie 11

here is my babel config

module.exports = function(api) {
  api.cache(true)

  const presets = [
    ['@babel/preset-env', { useBuiltIns: 'entry', corejs: 3 }],
    ['@babel/preset-react']
  ]

  const plugins = ['react-hot-loader/babel', 'babel-plugin-styled-components']

  return { presets, plugins }
}

relevant webpack section

  {
        test: /.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader'
        }
      },

[JaceHensley]

My build is a webpack build using babel-loader with the preset used in CRA with Typescript enabled

[tannerlinsley]

I’m also using CRA in the example. Link to your project? Tanner Linsley

…

On Oct 30, 2019, 8:43 PM -0600, JaceHensley ***@***.***>, wrote: My build is a webpack build using babel-loader with the preset used in CRA with Typescript enabled — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub, or unsubscribe.

[JaceHensley]

Unfortunately it's a closed source app, but I'll take a stab at making a reproducible test case, I'll start with the example in this repo

[JaceHensley]

Okay I think I see what the problem is. So I'm not using CRA but my own webpack.config.ts that is inspired by CRA but I don't have the react-app-polyfill stuff. I already have a polyfill.ts so I should be able to add the babel ones there

[vikasaditya]

This comes everytime in nextjs projects. Heres the link to sandbox https://codesandbox.io/s/nifty-saha-s2k7d . Tried in local also same result.