Create React Native App. - Plugin/Preset files are not allowed to export objects, only functions

Question

Need some help, I\'m getting a weird error out of left field that I have not been able to debug. This project was bundling successfully until yesterday after I setup my reac

Answer 1

My app is ejected and fagerbua's answer helped but I had to struggle a bit further to get it to work. I eventually started a fresh create-react-native-app, ejecting, and edited my package.json and .babelrc to use babel-preset-react-native, the 0.56.0 version of react-native, and the 16.4.1 version of react. I also had to remove the transform-react-jsx-source plugin from the .babelrc file. Below are the files used for a minimal working react-native@0.56.0 app:

.babelrc file:

{
  "presets": [
    "babel-preset-react-native"
  ]
}

package.json:

{
  "name": "myapp",
  "version": "0.1.0",
  "private": true,
  "devDependencies": {
    "babel-preset-react-native": "^5",
    "jest": "^23.4.2",
    "jest-react-native": "^18.0.0",
    "react-test-renderer": "16.3.1"
  },
  "scripts": {
    "start": "react-native start",
    "android": "react-native run-android",
    "ios": "react-native run-ios",
    "test": "jest"
  },
  "jest": {
    "preset": "react-native"
  },
  "dependencies": {
    "react": "^16.4.1",
    "react-native": "^0.56.0"
  }
}

Once I got this working with the basic app, I copied these changes back into my main app, removed my node_modules folder, did npm install and everything just worked. I'm not sure if the updated jest version was needed, I don't use jest but it was automatically added on create.