async/await does not work

[neoddish]

As this discussion metioned.

the async/await in my demo does not work if I did not npm install @babel/polyfill and add the code

module.exports = config => {
  config.entry = ['@babel/polyfill', config.entry];
}

into webpack.skpm.config.js.

After doing this, it works. However, every time I run the plugin again, the console throws:

@babel/polyfill is loaded more than once on this page. This is probably not desirable/intended and may have consequences if different versions of the polyfills are applied sequentially. If you do need to load the polyfill more than once, use @babel/polyfill/noConflict instead to bypass the warning.

[lizheming]

There has two ways to resolve your problem:

1. install regenerator-runtime as devDependencies and add import 'regenerator-runtime'; at the first line in your command file.
2. install @babel/plugin-transform-runtime as devDependencies and create .babelrc file with following content into root directory of your project:

   {
    "plugins": [
      [
        "@babel/plugin-transform-runtime",
        {
          "regenerator": true
        }
      ]
    ]
   }

I think the second is a good solution and open a pull request skpm/skpm#281 to resolve it. It will work well with default config after the pull request merged.