title: Can't find variable: Button - React Native
body: <p>I am trying to create a simple app with a button in react native, but so far every time I run my code, it gives me an error saying "Can't find variable: Button". I would like to end up with my title at the top (Already done) and a button in the center of the screen, which gives an alert when touched.</p>
  
  <p>I have run through several online tutorials and cannot find a solution.</p>
  
  <p>Here is my code:</p>
  
  <pre class="lang-js prettyprint-override"><code>        /**
       * Sample React Native App
       * https://github.com/facebook/react-native
       * @flow
       */
  
      import React, { Component } from 'react';
      import {
        AppRegistry,
        StyleSheet,
        Text,
        View
      } from 'react-native';
  
      class Project extends Component {
        render() {
          return (
            &lt;View style={styles.container}&gt;
             &lt;Text style={styles.Title}&gt;
               Lucas's App
              &lt;/Text&gt;
             &lt;View style={styles.buttonContainer}&gt;
               &lt;Button
                 onPress={() =&gt; { Alert.alert('You tapped the button!')}}
                 title="Press Me"
               /&gt;
              &lt;/View&gt;
            &lt;/View&gt;
          );
        }
      }
  
      const styles = StyleSheet.create({
        container: {
          flex: 1,
          backgroundColor: '#F5FCFF',
          },
        Title: {
          color: '#000000',
          marginTop: 13,
          paddingLeft:100,
          paddingRight:100,
          fontFamily: 'Avenir',
          fontSize: 30,
        },
          buttonContainer: {
          margin: 20
        },
  
      });
  
      AppRegistry.registerComponent('Project', () =&gt; Project);
  </code></pre>
  
  <p>Thanks in advance.</p>