Reactnative React Native Image 不显示，我该如何解决

我想知道为什么我的图像没有显示出来.我想要的是让我的图像在背景中，我的两个按钮在底部，在图像上方.我使用react native，IDE"Deco"用于应用程序.现在根本没有图像显示:

import React, { Component } from 'react';
import { Button,Alert, TouchableOpacity,Image, Dimensions } from 'react-native'

import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
} from 'react-native';

class Project extends Component {
  render() {
    return (
      <View style={{backgroundColor: '#375D81', flex: 1}}>
        <Image source={{uri: 'https://upload.wikimedia.org/wikipedia/commons/f/f0/Everest_North_Face_toward_Base_Camp_Tibet_Luca_Galuzzi_2006_edit_1.jpg'}}/>
         <View style = {styles.container}>
           <TouchableOpacity style = {styles.buttonText1} onPress={() => { Alert.alert('You tapped the button!')}}>
             <Text style={styles.text}> 
              Button 1
             </Text>
           </TouchableOpacity>
           
           <TouchableOpacity style = {styles.buttonText2} onPress={() => { Alert.alert('You tapped the button!')}}>
             <Text style= {styles.text}>
              Button 2
             </Text>
           </TouchableOpacity>
           
        </View>
      </View>
    );
  }
}

const styles = StyleSheet.create({
 main: {
   backgroundColor: 'blue'
 },
 text: {
 alignItems : 'center'
               
 },
 container: {
  alignItems: 'center',
  flex: 1,
 },
  buttonText1: {
      borderWidth: 1,
      padding: 25,      
      borderColor: 'black',
      backgroundColor: '#C4D7ED',
      alignItems: 'center',
      position: 'absolute',
      bottom: 0,
      width: Dimensions.get('window').width / 2,
      height: Dimensions.get('window').height / 8,
      left: 0,
   },
    buttonText2: {
      borderWidth: 1,
      padding: 25,      
      borderColor: 'black',
      backgroundColor: '#C4D7ED',
      alignItems: 'center',
      position: 'absolute',
      bottom: 0,
      width: Dimensions.get('window').width / 2,
      height: Dimensions.get('window').height / 8,
      right: 0,
   }
});

AppRegistry.registerComponent('Project', () => Project);