New react-native app has 'TypeError: babelHelpers.typeof is not a function' [iOS]

Question

A new project created with the latest version of react-native throws javascript error while running(/debugging). Tested this on simulator.

[fatal][tid:main]         


        

Answer 1

One issue is that if there is a .babelrc in a parent directory to your app, the packager will read that and it will cause this exact error. One way around it is to add a .babelrc file in your project:

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