title: New project xamarin.form prism Error NETSDK1004 - Prism 2.2.1
body: <p>when generating a new project xamarin.form prism I get this error when running. With the previous version 2.1.7 it worked for me OK.
  It does not allow me to open the Nuget Package since it also gives an error.
  Any recommendation?
  I saw the 2 posts of this error but they do not apply to me.</p>
  
  <p>Error   NETSDK1004  Assets file 'C:\Empresas\Job_Facu\Job\Job.Prism\Job.Prism\obj\project.assets.json' not found. Run a NuGet package restore to generate this file.    Job.Prism   C:\Program Files\dotnet\sdk\3.1.202\Sdks\Microsoft.NET.Sdk\targets\Microsoft.PackageDependencyResolution.targets    234 </p>