How to deploy android app to phone

hello,

 

I designed an android app using visual studio 2015's C# with xamarin. it is working well in my local

emulator well in debug mode. but in release mode , in emulator a message coming like "X application stopped unfortunately". how to resolve it.  In release mode build is successful and deploy to emulator is success but not working.  I prepared an .apk and copy that .apk in mobile and tried to install then also a message coming "X application has not installed".

 

i want to build an .apk file  and test directly in my android phone

 

Please help me to resolve this

 

Thanks everybody.