title: Can't render blazor component
body: <p>Using visual studio 2019 preview 2.0, .NET core SDK 3.0.100-preview8-013656.  Server-side blazor application.  </p>
  
  <p><a href="https://docs.microsoft.com/en-us/aspnet/core/blazor/components?view=aspnetcore-3.0#integrate-components-into-razor-pages-and-mvc-apps" rel="nofollow noreferrer">The blazor docs</a> say the way to render a component is to call <code>Html.RenderComponentAsync</code>.  I can't find this static <code>Html</code> class anywhere.<br>
  In the SDK directory, when I look inside Microsoft.AspNetCore.Components.dll, I see it has an <code>HtmlRenderer</code> class with such a method, but it's not static.<br>
  When I look at AspNetCore source, I see an <code>HtmlHelperComponentExtensions</code> class in namespace <code>Microsoft.AspNetCore.Mvc.Rendering</code>  </p>
  
  <p>MVC?  I'm very confused.  I'm using the latest SDK, is the doc simply old?</p>
  
  <p>If I try to navigate directly to the route for my component, I just get <em>(await Html.RenderComponentAsync())</em> written directly to my document along with signalR exceptions to the console.</p>