Developing of android app using xamarin/visual studio 2015

Question

Hello everyone,

 

i have created a android app having webview of my website. I take minimum android version - Android 4.4  (API Level 19 - Kitkat) and Target Version - Android 5.1 (API Level 22 - Lollipop). and tick the required permission INTERNET.and  when i run it at emulator its running well. But when i created APK file from archieve option (having in Build option of menu bar) and try to it on my phone by installing the file: "Demoapp.DemoApp.Signed.apk".

and after installing wheni open it, it unfortunately stopping.

 

Can any one please guide me why this happening? 

 

 

Thanks in advance