title: Xamarin.Forms (Droid) Attempt to re-install MyProject.Android without first uninstalling
body: <p>I hadn't had problems deploying my app on my smartphone but when I uninstalled it from my phone and try to deploy it again I found this error.</p>
  
  <p><strong>Error:</strong></p>
  
  <blockquote>
    <p>Failure [INSTALL_FAILED_ALREADY_EXISTS: Attempt to re-install MyProject.Android without first uninstalling.]</p>
  </blockquote>
  
  <p>Surely I'm missing something so I'd appreciate some help, thanks.</p>