Not allowed to load local resource

Hi All,

I'm new to xamarin.forms, I would like to ask why I cannot add a webview in my simple application.
I am getting this error whenever I run my solution.

"Not allowed to load local resource: file:///android_asset/webkit/android-weberror.png", source: data:text/html,chromewebdata (12)"

I am following this documentation
http://developer.xamarin.com/guides/cross-platform/xamarin-forms/working-with/webview/

Anyone kindly help me.

Thanks!