title: Object Reference compilation error when using Firebase Cloud Communication component for Xamarin iOS
body: <p>Steps to reproduce: </p>
  
  <ol>
  <li>Create a new xamarin forms app</li>
  <li>Build iOS => Ensure it builds successfully </li>
  <li>Add the iOS component for <a href="https://components.xamarin.com/gettingstarted/firebaseioscloudmessaging" rel="nofollow noreferrer">Firebase Cloud Messaging for iOS</a> from the component store </li>
  <li>Clean, Rebuild => Notice you get object reference error while compiling the iOS project </li>
  </ol>
  
  <p>Here is the error from output window: </p>
  
  <blockquote>
    <p>"src\RepeatReturns\packages\Xamarin.Build.Download.0.2.2\build\Xamarin.Build.Download.targets(25,3): error : Object reference not set to an instance of an object."</p>
  </blockquote>
  
  <p>Any idea how can we fix this? </p>
  
  <p>Thanks</p>
  
  <p>UPDATE: 
  If it helps, I have the linker option for iOS set to "link SDK assemblies only". </p>