react-native-google-signin-无法读取未定义的属性'number'

Question

When I implement import { GoogleSignin } from 'react-native-google-signin';

I get this error: Cannot read property 'number' of undefined

I have removed node_modules and installed again all dependencies but again I got the same error.

Answer 1

Check react native version, as in doc :

If you use React Native < v0.40 stick with v0.8.1 (npm install react-native-google-signin@0.8 --save).

If you use React Native < v0.47 stick with v0.10.0 (npm install react-native-google-signin@0.10 --save).

Follow the installation guides: Android and iOS

Check this issue as well

Answer 2

React has been updated and doesn't include propTypes . Replace the import statement in GoogleSignIn.ios.js with below imports:

import React, { Component } from 'react';
import PropTypes from 'prop-types';