Undefined is not and object(evaluating 'RootComponent.prototype)

Asked Dec 18 '18 at 07:45

Active Dec 18 '18 at 07:45

Viewed 1,358 times

I checked this question undefined is not an object (evaluating 'RootComponent.prototype') for the error but I could not solve it. There is probably one wrong import but I can not see what is wrong here.

App.js

import React, { Component } from 'react';
import FirstPage from './src/components/FirstPage/firstPage';

import { createStackNavigator } from 'react-navigation'; 

export default class App extends Component {
  render () {
    return <AppStackNavigator/>;
  }
}
const AppStackNavigator = createStackNavigator ({
    FirstPage: {screen: FirstPage},
    //SecondPage: {screen: SecondPage},

});

Index.js

import {AppRegistry} from 'react-native';
import { App } from './App';
import {name as appName} from './app.json';
import React from 'react';


AppRegistry.registerComponent(appName, () => App);

asked Dec 18 '18 at 07:45

Selim Mıdıkoğlu

4

Try removing curly braces which is along with App in index.js like `import App from './App';` – Vikas Singh Dec 18 '18 at 07:50
@VikasSingh It works. Thank you so much but what is the deal here, I don't get it. – Selim Mıdıkoğlu Dec 18 '18 at 07:53
check this out :- https://stackoverflow.com/questions/36795819/when-should-i-use-curly-braces-for-es6-import – Vikas Singh Dec 18 '18 at 07:56
@VikasSingh Omg. Thank you so much. I am enlightned. – Selim Mıdıkoğlu Dec 18 '18 at 07:59

Undefined is not and object(evaluating 'RootComponent.prototype)

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