title: SqlClientFactory error with EF 6 - Unable to determine the provider name for provider factory
body: <p>I'm getting this error when I attempt access a collection within the context:
  Unable to determine the provider name for provider factory of type 'Microsoft.Data.SqlClient.SqlClientFactory'. Make sure that the ADO.NET provider is installed or registered in the application config.</p>
  <p>My config has the standard connection string:</p>
  <pre><code>&lt;add name=&quot;someDb&quot; connectionString=&quot;Data Source=****;Initial Catalog=****;Integrated Security=SSPI;MultipleActiveResultSets=True;&quot; providerName=&quot;Micorsoft.Data.SqlClient&quot; /&gt;
  </code></pre>
  <p>This has been working fine for years (the providerName was System.Data.SqlClient), now trying to upgrade to Standard2.0 with EF 6.2.</p>
  <p>Hoping there's a fix I can make to the connection string or in the DbContext, but I'm stumped.</p>