title: Scaffold-DbContext does not work with SQLite
body: <p>I am using Entity Framework Core and .NET Core 2.1. I am trying to run the EF designer from the Package Manager Console on Windows, but I get the following error:</p>
  
  <blockquote>
    <p>System.ArgumentException: The string argument 'storeTypeName' cannot be empty.</p>
  </blockquote>
  
  <p>This is the command which results in the error above:</p>
  
  <pre><code>Scaffold-DbContext "Filename=switches.db" Microsoft.EntityFrameworkCore.Sqlite -OutputDir Models
  </code></pre>
  
  <p>I have already tried using the full path to the <code>.db</code> file but I got the same result.</p>