Alloy widget problem

I am testing the highchart with Alloy. Here is the sample project link - high chart Alloy widget

Here is the titanium blog : - interactive-charts-in-appcelerator-titanium

it runs fine inside iOS, however, it gives below exceptions in android with 4.4.2

[ERROR] :  AndroidProtocolHandler: Unable to open asset URL: file:///android_asset/Resources/html/com.alco.highcharts/jquery.min.js
[ERROR] :  AndroidProtocolHandler: Unable to open asset URL: file:///android_asset/Resources/html/com.alco.highcharts/highcharts.js
[ERROR] :  AndroidProtocolHandler: Unable to open asset URL: file:///android_asset/Resources/html/com.alco.highcharts/exporting.js

All the js files are under widgets/com.alco.highcharts/assets/html/ , they are referenced by a html file under the same directory

<script src="./jquery.min.js"></script>
<script src="./highcharts.js"></script>
<script src="./exporting.js"></script>