title: undefined is not an object (evaluating '_reactNative.PropTypes.string') Error
body: <p>I got this error when i am implementing third party library as <a href="https://github.com/ayoubdev/react-native-android-kit" rel="noreferrer">https://github.com/ayoubdev/react-native-android-kit</a> what this error indicates?</p>
  
  <pre><code> 'use strict';
  
  import React, {Component} from 'react';
  import{
   Platform,
   StyleSheet,
   Text,
   View,
   Image,
   Navigator,
   ToolbarAndroid,
   ScrollView
  }from 'react-native';
  
  import EventList from './javra-event-list';
    import AndroidToolBar from './javra-android-toolbar';
   import JResource from '../../javra-resource';
   import ScrollableTabView, {DefaultTabBar,ScrollableTabBar} from 'react-native-scrollable-tab-view';
    import CustomTab1 from './javra-custom-tabbar';
  
  
   import {TabLayoutAndroid, TabAndroid} from "react-native-android-kit";
  
   export default class Home extends Component{
  
    constructor(props){
    super(props);
    this.eventThumnailHandler = this.eventThumnailHandler.bind(this);
    this.movies = [{id:1,title:'Event 2016'},{id:2,title:'Event 2015'},{id:3,title:'Event 2014'},{id:4,title:'Event 2013'},
                  {id:5,title:'Event 2016'},{id:6,title:'Event 2015'},{id:7,title:'Event 2014'},{id:8,title:'Event 2013'}
                ];
  
   }
  
   static childContextTypes = {
     eventThumnailHandler: React.PropTypes.func.isRequired,
  
   };
  
   getChildContext() {
     return {
       eventThumnailHandler: (item) =&gt; (this.eventThumnailHandler(item)),
  
     };
     }
  
   static contextTypes = {
      openDrawer: React.PropTypes.func.isRequired,
    };
  
    _openDrawer(){
      this.context.openDrawer();
    }
  
  
    eventThumnailHandler(item: Object){
      console.log('*/*/*/*///*/*/: ' + item.title);
      this.props.navigator.push(
        {id: 'NewView' , index:1}
      )
    }
  
  render(){
   var toolbarActions = [{title:'Next',show:'always'}];
   return(
    &lt;View style={{flex:1}}&gt;
  
                  &lt;TabLayoutAndroid style={{height:60}} backgroundColor='#009688' indicatorTabColor='#ffc400'
                                    indicatorTabHeight={2} scrollable={false} center={false}&gt;
  
                      &lt;TabAndroid text='Tab1' textSize={16} textColor="white" selectedTextColor='#ffc400'
                                  icon='ic_home_black_24dp' iconPosition='left'&gt;
  
                          &lt;Text&gt;I'm the first Tab content!&lt;/Text&gt;
  
                      &lt;/TabAndroid&gt;
  
                      &lt;TabAndroid text='Tab2' textSize={16} textColor='white' selectedTextColor='#ffc400'
                                  icon='ic_important_devices_black_24dp' iconPosition='left'&gt;
  
                          &lt;Text&gt;I'm the second Tab content!&lt;/Text&gt;
  
                      &lt;/TabAndroid&gt;
  
                  &lt;/TabLayoutAndroid&gt;
  
              &lt;/View&gt;
  );
  }
  }
  </code></pre>
  
  <p>i have implemented tablayout as provided by the link above mentioned. what could be the error in my file.please suggest me.</p>