title: Xamarin Forms Release version of Android not building when linking enabled
body: <p>I have a Xamarin Forms solution that builds successfully for all projects while targeting debug mode. </p>
  
  <p>When I switch to target Release I can successfully build the iOS project but am unable to build the Android one. </p>
  
  <p>I have been able to narrow this down to whether "linking" is enabled or disabled. When linking is set to none I can build in release. As soon as I try a release build with linking to set to "sdk assemblies only" the build frezzes i.e. no error just hangs requiring that i kill the MSBUILD in the task manager.</p>
  
  <p>This has been tried on a number of versions of Visual Studio on different machines.
  Xamarin Forms version: 4.4
  Target Android version: 9.0</p>
  
  <p>How can I get this to build in release with linking enabled?</p>
  
  <p>Thanks</p>