onChangeCallbacks error

[Almaju]

After upgrading to Expo 27 (React Native), I get this error when either login or logout:
[TypeError: undefined is not a function (evaluating 'onChangeCallbacks[typeof Symbol === "function" ? Symbol.iterator : "@@iterator"]()')]

This is coming from client/store.js

I got it working by wrapping it in a try...catch statement for the moment.

[lauyilouis]

I saw this error when I using android with expo. My solution was:

1. run npm install core-js
2. In App.js, paste the following code:
   import 'core-js/es6/symbol'; import 'core-js/fn/symbol/iterator';

[ujwal-setlur]

This will fail on react-native 0.56.0. It will trigger this issue:

facebook/react-native#18542