title: The package was not properly signed (NO_CERTIFICATES) in running application
body: <p>I am developing xamarin forms application and i got the below error when running application on android emulator </p>
  
  <pre><code>&gt;The package was not properly signed (NO_CERTIFICATES).
  2&gt;   at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess(String output, String packageName)
  2&gt;   at Mono.AndroidTools.AndroidDevice.&lt;&gt;c__DisplayClass94_0.&lt;InstallPackage&gt;b__0(Task`1 t)
  2&gt;   at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke()
  2&gt;   at System.Threading.Tasks.Task.Execute()
  2&gt;Done building project "Modern.FM.Mobile.Android.csproj".
  2&gt;Build succeeded.
  2&gt;The package was not properly signed (NO_CERTIFICATES).
  2&gt;   at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess(String output, String packageName)
  2&gt;   at Mono.AndroidTools.AndroidDevice.&lt;&gt;c__DisplayClass94_0.&lt;InstallPackage&gt;b__0(Task`1 t)
  2&gt;   at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke()
  2&gt;   at System.Threading.Tasks.Task.Execute()
  </code></pre>