React-MobX Error: The 'decorators' plugin requires a 'decoratorsBeforeExport' option, whose value must be a boolean

Question

I get the following error: If you are migrating from Babylon/Babel 6 or want to use the old decorators proposal, you should use the \'decorators-legacy\' plugin instead of \'dec

Answer 1

React native 0.59

babel.config.js:

{ 
  "presets": ["module:metro-react-native-babel-preset"],
  "plugins": [
        ["@babel/plugin-transform-flow-strip-types"],
        ["@babel/plugin-proposal-decorators", { "legacy": true}],
        ["@babel/plugin-proposal-class-properties", { "loose": true}]
    ]
}

---

npm install @babel/plugin-transform-flow-strip-types @babel/plugin-proposal-decorators @babel/plugin-proposal-class-properties --save

---

Source: https://github.com/facebook/react-native/issues/20588#issuecomment-448218111