Cannot read property 'isAuthorized' of undefined

 - Created an expo app
 - Ejected the expo app
 - installed react-native-google-fit
 - linked the package
 - Added GoogleFit.authorize
 
got the following error.

```
authorized >>> Object {
  "message": "Cannot read property 'isAuthorized' of undefined",
  "success": false,
}
```