Ionic App Launch Error it shows "Application Error - The connection to the server was unsuccessful. (file:///android_asset/www/index.html)"
<p>When I launches my Ionic App on android platform it shows me error Sometimes that</p>

<blockquote>
  <p>Application Error - The connection to the server was unsuccessful. (file:///android_asset/www/index.html)</p>
</blockquote>

<p>and then App crashes after trying 5 to 6 times then App loaded. How to fix this error 
As some people suggested i am not having any external javascript links all are downloaded in project .
my index file </p>

<p><strong>index.html</strong></p>

<p>
</p>

<p>
    
    
    </p>

<pre><code>&lt;title&gt;&lt;/title&gt;

&lt;link href="lib/ionic/css/ionic.css" rel="stylesheet"&gt;
&lt;link href="css/style.css" rel="stylesheet"&gt;

&lt;!-- IF using Sass (run gulp sass first), then uncomment below and remove the CSS includes above
&lt;link href="css/ionic.app.css" rel="stylesheet"&gt;
--&gt;

&lt;!-- ionic/angularjs js --&gt;
&lt;script src="lib/ionic/js/ionic.bundle.js"&gt;&lt;/script&gt;
&lt;!-- Web client for push Notification--&gt;
&lt;script src="lib/ionic-platform-web-client/dist/ionic.io.bundle.min.js"&gt;&lt;/script&gt;
&lt;script src="js/externalLibrary/jquery.min.js"&gt;&lt;/script&gt;
&lt;!-- cordova script (this will be a 404 during development) --&gt;
&lt;script src="js/externalLibrary/ng-cordova.js"&gt;&lt;/script&gt;

&lt;!-- &lt;script src="lib/logtofile/www/logtofile.js"&gt;&lt;/script&gt; --&gt;


&lt;!-- your app's js --&gt;
&lt;script src="js/externalLibrary/mqttws31.js"&gt;&lt;/script&gt;
&lt;script src="js/app.js"&gt;&lt;/script&gt;
&lt;script src="js/externalLibrary/ion-pullup.js"&gt;&lt;/script&gt;
&lt;script src="app/services/menuContent.js"&gt;&lt;/script&gt;
&lt;!-- Cordova is bootstrapped by ionic-platform-web-client, uncomment this if you remove ionic-platform-web-client... --&gt;
&lt;!-- &lt;script src="cordova.js"&gt;&lt;/script&gt; --&gt;
&lt;script src="js/controllers.js"&gt;&lt;/script&gt;
&lt;script src="app/constant/constant.js"&gt;&lt;/script&gt;
&lt;script src="app/constant/string.js"&gt;&lt;/script&gt;
&lt;script src="app/services/TrackingApi.js"&gt;&lt;/script&gt;
&lt;script src="app/services/errorHandling.js"&gt;&lt;/script&gt;
&lt;script src="app/services/shareData.js"&gt;&lt;/script&gt;
&lt;script src="app/geofencetoolkit/geofenceCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/geofencetoolkit/geofenceeditCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/vtracking/VTrackingCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/vtracking/trackingCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/services/DataPassService.js"&gt;&lt;/script&gt;

&lt;script src="app/walktocar/walktocarCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/adddevice/deviceCtrl.js"&gt;&lt;/script&gt;

&lt;script src="app/settings/settingsCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/loginPage/loginPageCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/addAccount/jioLoginCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/addAssignee/addAssigneeCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/carList/carListingCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/homePage/homePageCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/dashboard/dashboardCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/patrolLevel/patrolLevelCtrl.js"&gt;&lt;/script&gt;
&lt;script src="app/coolantTemp/coolantTempCtrl.js"&gt;&lt;/script&gt;
</code></pre>

<p></p>

<p>
    
    
</p>

<p></p>

<p><strong>Config.xml</strong></p>

<pre><code>&lt;?xml version="1.0" encoding="UTF-8" standalone="yes"?&gt;
&lt;widget id="com.harman.jiocarconnected" version="0.0.1" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0"&gt;
  &lt;name&gt;Jio Car Connect&lt;/name&gt;
  &lt;description&gt;&amp;#xD;&amp;#xD;
        An Ionic Framework and Cordova project.&amp;#xD;&amp;#xD;
    &lt;/description&gt;
  &lt;author email="hi@ionicframework" href="http://ionicframework.com/"&gt;&amp;#xD;&amp;#xD;
      Ionic Framework Team&amp;#xD;&amp;#xD;
    &lt;/author&gt;
  &lt;content src="index.html"/&gt;
  &lt;access origin="*" subdomains="true"/&gt;
  &lt;access origin="tel:*" launch-external="yes"/&gt;
  &lt;access origin="cdvfile://*"/&gt;
  &lt;preference name="webviewbounce" value="false"/&gt;
  &lt;preference name="UIWebViewBounce" value="false"/&gt;
  &lt;preference name="DisallowOverscroll" value="true"/&gt;
  &lt;preference name="android-minSdkVersion" value="16"/&gt;
  &lt;preference name="loadUrlTimeoutValue" value="17000" /&gt;
  &lt;preference name="FadeSplashScreen" value="false"/&gt;
  &lt;preference name="AndroidPersistentFileLocation" value="Compatibility"/&gt;
  &lt;preference name="BackupWebStorage" value="none"/&gt;
  &lt;preference name="SplashScreen" value="screen"/&gt;
  &lt;preference name="android-windowSoftInputMode" value="adjustPan"/&gt;
  &lt;!-- &lt;preference name="SplashScreenDelay" value="5000"/&gt; --&gt;
  &lt;preference name="AutoHideSplashScreen" value="false" /&gt;
  &lt;preference name="ShowSplashScreenSpinner" value="true"/&gt;
  &lt;preference name="StatusBarOverlaysWebView" value="false"/&gt;
  &lt;preference name="StatusBarBackgroundColor" value="#009c84"/&gt;
  &lt;preference name="StatusBarStyle" value="lightcontent"/&gt;
  &lt;preference name="Orientation" value="portrait"/&gt;
  &lt;preference name="android-targetSdkVersion" value="20"/&gt;
  &lt;hook type="before_run" src="hooks/appBeforeBuild.js" /&gt;
  &lt;feature name="StatusBar"&gt;
    &lt;param name="ios-package" value="CDVStatusBar" onload="true"/&gt;
  &lt;/feature&gt;
  &lt;platform name="android"&gt;
    &lt;icon src="resources\android\icon\drawable-ldpi-icon.png" density="ldpi"/&gt;
    &lt;icon src="resources\android\icon\drawable-mdpi-icon.png" density="mdpi"/&gt;
    &lt;icon src="resources\android\icon\drawable-hdpi-icon.png" density="hdpi"/&gt;
    &lt;icon src="resources\android\icon\drawable-xhdpi-icon.png" density="xhdpi"/&gt;
    &lt;icon src="resources\android\icon\drawable-xxhdpi-icon.png" density="xxhdpi"/&gt;
    &lt;icon src="resources\android\icon\drawable-xxxhdpi-icon.png" density="xxxhdpi"/&gt;
    &lt;splash src="resources\android\splash\drawable-port-ldpi-screen.png" density="port-ldpi"/&gt;
    &lt;splash src="resources\android\splash\drawable-port-mdpi-screen.png" density="port-mdpi"/&gt;
    &lt;splash src="resources\android\splash\drawable-port-hdpi-screen.png" density="port-hdpi"/&gt;
    &lt;splash src="resources\android\splash\drawable-port-xhdpi-screen.png" density="port-xhdpi"/&gt;
    &lt;splash src="resources\android\splash\drawable-port-xxhdpi-screen.png" density="port-xxhdpi"/&gt;
    &lt;splash src="resources\android\splash\drawable-port-xxxhdpi-screen.png" density="port-xxxhdpi"/&gt;

  &lt;/platform&gt;
  &lt;icon src="resources\android\icon\drawable-xhdpi-icon.png"/&gt;
&lt;/widget&gt;
</code></pre>