title: Upgrading to Microsoft.AspNet.Mvc 5.0.0 via NuGet fails
body: <p>Using NuGet, when upgrading to the latest version of ASP.net 5.0.0 I get the following NuGet response:</p>
  
  <pre><code>Attempting to resolve dependency 'Microsoft.AspNet.WebPages (= 3.0.0)'.
  Attempting to resolve dependency 'Microsoft.Web.Infrastructure (= 1.0.0.0)'.
  Attempting to resolve dependency 'Microsoft.AspNet.Razor (= 3.0.0)'.
  Installing 'Microsoft.AspNet.Mvc 5.0.0'.
  Successfully installed 'Microsoft.AspNet.Mvc 5.0.0'.
  Updating 'Microsoft.AspNet.Mvc' from version '4.0.30506.0' to '5.0.0' in project 'HotridesMvc'.
  Install failed. Rolling back...
  Updating 'Microsoft.AspNet.Mvc 4.0.30506.0' to 'Microsoft.AspNet.Mvc 5.0.0' failed. Unable to find a version of 'AspNetMvc' that is compatible with 'Microsoft.AspNet.Mvc 5.0.0'.
  </code></pre>
  
  <p>Has anyone seen this? I've had a sniff around the old package configuration and don't see anything obviously amiss.</p>
  
  <p>There were a number of other aspnet related updates which have worked, i.e. web-pages, but I'm now left with a broken web-app which shows the yellow screen of death complaining about dll issues.</p>