Broken Assembly

[fewbackseven]

The sample projects:
ContosoCookbook and PrismformsGallery are not building for some reason..
I tried other samples like "Hello prism" and all.. its working fine except those above said projects. .

I am trying in android.
It seems the assembly is broken for me.

Description

using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Android.App;

// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("ContosoCookbook.Droid")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("ContosoCookbook.Droid")]
[assembly: AssemblyCopyright("Copyright © 2016")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
[assembly: ComVisible(false)]

Sample Feature

Any suggestions to overcome this issue and build this project?