I have been working on a react native application and I am currently facing an issue with routing the user to the next view after they successfully log in through Facebook.
The error message "Cannot read property 'push' of undefined" keeps appearing. I have gone through various forum answers and made sure to include NavigatorIOS and bind(this) in my function call, but that doesn't seem to be the problem.
Since I am relatively new to development, I would appreciate any help in figuring out what is causing this error.
Error Message:
Error: Cannot read property 'push' of undefined
stack:
<unknown> index.ios.bundle:1498
MessageQueue.__invokeCallback index.ios.bundle:7235
<unknown> index.ios.bundle:7151
guard index.ios.bundle:7104
<unknown> index.ios.bundle:7151
<unknown> index.ios.bundle:7148
ReactDefaultBatchingStrategyTransaction.Mixin.perform index.ios.bundle:6552
Object.ReactDefaultBatchingStrategy.batchedUpdates index.ios.bundle:15885
Object.batchedUpdates index.ios.bundle:5084
URL: undefined
line: undefined
message: Cannot read property 'push' of undefined
============================
Code Snippet:
'use strict';
var React = require('react-native');
var Main = require('./App/Components/Main');
var Icon = require('./node_modules/react-native-vector-icons/FontAwesome');
var FacebookLoginManager = require('NativeModules').FacebookLoginManager;
var {
AppRegistry,
StyleSheet,
Text,
View,
TouchableHighlight,
NavigatorIOS,
Navigator,
} = React;
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
marginTop: 10
},
icon: {
fontSize: 20,
color: 'white',
paddingVertical: 5,
paddingHorizontal: 8,
borderRadius: 4,
backgroundColor: '#3b5998',
},
text: {
marginLeft: 10,
color: 'white',
fontWeight: '600',
},
});
class nomsyapp extends React.Component {
constructor(props) {
super(props);
this.state = {
result: 'Find the Foods that Fit Your Lifestyle',
loggedIn: false,
};
}
login() {
FacebookLoginManager.newSession((error, info) => {
if (error) {
this.setState({result: error});
} else {
this.setState({result: info});
this.setState({loggedIn: true});
this.props.navigator.push({
component: Main,
title: 'Choose Your Lifestyle',
});
}
});
}
render() {
return (
<View style={styles.container}>
<TouchableHighlight onPress={this.login.bind(this)}>
<Icon name="facebook" style={styles.icon}>
<Text style={styles.text}>Login with Facebook</Text>
</Icon>
</TouchableHighlight>
<Text style={styles.instructions}>
{this.state.result}
</Text>
</View>
);
}
};
AppRegistry.registerComponent('nomsyapp', () => nomsyapp);
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