Environment:

OS: macOS Sierra 10.12.1
Node: 7.9.0
Yarn: 0.20.3
npm: 4.2.0
Watchman: 4.9.0
Xcode: Xcode 8.3.3 Build version 8E3004b
Android Studio: 2.3 AI-162.4069837

回答1:

Check your .babelrc file. Is it including the babel transform-async-to-generator plugin? If so, remove it. The babel helpers that React Native includes do not include the helper for that transform. I'm not sure how to add it without generating a new set of helpers and including them in your build. If that plugin is not in your babel config, maybe one of the library dependencies you are using has it.

回答2:

So I use expo with my project and I had this exact same issue a few days ago, was bothering the hell out of me... ultimately fixed it by importing the library - babel-plugin-transform-async-to-generator

Here is my babelrc file for reference though: `

{
  "presets": ["babel-preset-expo"],
  "env": {
    "development": {
      "plugins": [
        "transform-async-to-bluebird",
        "transform-async-to-generator",
        "transform-react-jsx-source",
        [
          "module-resolver",
          {
            "root": ["./src"]
          }
        ]
      ]
    },
    "production": {
      "plugins": [
        "transform-async-to-bluebird",
        "transform-async-to-generator",
        "transform-remove-console",
        "transform-react-jsx-source",
        [
          "module-resolver",
          {
            "root": ["./src"]
          }
        ]
      ]
    }
  }
}
`

来源：https://stackoverflow.com/questions/46708201/babelhelpers-asynctogenerator-is-not-a-function-error

标签

javascript