title: Autofac / MVC4 / WebApi (RC) Dependency Injection issue after upgrading from beta
body: <pre><code>var resolver = new AutofacWebApiDependencyResolver(container);
  configuration.ServiceResolver.SetResolver(resolver);
  </code></pre>
  
  <p>after updating to ASP.NET MVC4 (RC) I get the following error:</p>
  
  <blockquote>
    <p>'System.Web.Http.HttpConfiguration' does not contain a definition for
    'ServiceResolver' and no extension method 'ServiceResolver' accepting
    a first argument of type 'System.Web.Http.HttpConfiguration' could be
    found (are you missing a using directive or an assembly reference?)</p>
  </blockquote>
  
  <p>I realize after reading this (http://www.asp.net/web-api/overview/extensibility/using-the-web-api-dependency-resolver) that these interfaces have changed, but I am not sure how to apply this change to how I use Autofac.</p>
  
  <p>Do i need to wait for a new release from Autofac or is there another way I can get past this.</p>