title: Xamarin Android - fresh app created - infinite build and deploy issue (Windows 10 and MacOS Sierra)
body: <p>I am trying to understand what is the problems with my project since the update to .NET Core 2.0. I am working with Xamarin since 2015 and after so long, even if the technology is so great to me, I still have so many issues with the release mod.. (build, deployment, store, etc)</p>
  
  <p>Today I thought that I would some time to understand where these problems could come from. So I just created a project, this is my configuration:</p>
  
  <h1>Operating System Configuration</h1>
  
  <blockquote>
    <p>Edition Windows 10 Education
    Version 1709
    OS Build 16299.125</p>
  </blockquote>
  
  <hr>
  
  <h1>Visual Studio</h1>
  
  <blockquote>
    <p>Microsoft Visual Studio Community 2017
    Version 15.5.2</p>
  </blockquote>
  
  <hr>
  
  <h1>.NET Framework</h1>
  
  <blockquote>
    <p>Microsoft.NET.Framework
    Version 4.7.02556</p>
  </blockquote>
  
  <p>I just created the project and the build is infinite.... x) What did I do?</p>
  
  <p>Well step by step, I did that:</p>
  
  <ul>
  <li>File -> New... -> Project...</li>
  <li>Installed -> Visual C# -> Cross-Platform -> Cross-Platform App (Xamarin.Forms)</li>
  <li>I then name it "NightLine"</li>
  <li>I don't change anything and try to build (any CPU)</li>
  </ul>
  
  <p>Since I also have a MacBook Pro, I tried with it :) I copied the whole solution and run the <code>.sln</code> from my Mac.</p>
  
  <h1>Operating System Configuration</h1>
  
  <blockquote>
    <p>macOS Sierra
    Version 10.12.6</p>
  </blockquote>
  
  <hr>
  
  <h1>Visual Studio</h1>
  
  <blockquote>
    <p>Visual Studio 2017
    for Mac [Community]
    Version 7.3.2</p>
  </blockquote>
  
  <ul>
  <li>Debug/Build -> OK</li>
  <li>Debug/Deploy -> Ok</li>
  <li>Release/Build -> Ok</li>
  <li><p>Release/Deploy -> <strong>KO</strong></p>
  
  <pre><code>EXEC : warning : Directory obj/Release/android/assets contains Java.Interop.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Mono.Security.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains System.Core.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains System.Net.Http.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains System.Runtime.Serialization.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains System.ServiceModel.Internals.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains System.Xml.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains System.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Animated.Vector.Drawable.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Annotations.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Compat.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Core.UI.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Core.Utils.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Design.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Fragment.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Media.Compat.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Transition.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.Vector.Drawable.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.v4.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.v7.AppCompat.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.v7.CardView.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.v7.MediaRouter.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.v7.Palette.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Android.Support.v7.RecyclerView.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains Xamarin.Forms.Platform.dll but no debug symbols file was found.
  EXEC : warning : Directory obj/Release/android/assets contains mscorlib.dll but no debug symbols file was found.
  /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.targets(2424,2): warning : No -tsa or -tsacert is provided and this jar is not timestamped. Without a timestamp, users may not be able to validate this jar after the signer certificate's expiration date (2047-12-14) or after any future revocation date.
  /Library/Frameworks/Mono.framework/External/xbuild/Xamarin/Android/Xamarin.Android.Common.Debugging.targets(514,2): error : Failure [INSTALL_FAILED_NO_MATCHING_ABIS: Failed to extract native libraries, res=-113]
      27 Warning(s)
      1 Error(s)
  
  Time Elapsed 00:00:06.19
  </code></pre></li>
  </ul>
  
  <p>Another thing which is weird, in another console, the Application Output one, on MacOS, I have the following message, but I am not sure if it has any link:</p>
  
  <pre><code>    &gt; am start -n "eip.NightLine/md5fc7575fc7d4ab373cd3cbb2310170cc6.MainActivity"
      &gt; Starting: Intent { cmp=eip.NightLine/md5fc7575fc7d4ab373cd3cbb2310170cc6.MainActivity }
      Error type 3
      Error: Activity class {eip.NightLine/md5fc7575fc7d4ab373cd3cbb2310170cc6.MainActivity} does not exist.
  
  
       Failed to launch app: Device could not find component named: eip.NightLine/md5fc7575fc7d4ab373cd3cbb2310170cc6.MainActivity
  </code></pre>
  
  <p>Otherwise, I have everything installed, I mean in the SDK Android. I installed every elements...</p>
  
  <p>Do you have any idea why it acts like that with android?</p>