title: The type or namespace name 'Mvc' does not exist
body: <p>I have recently installed visual studio 2013. After downloaded a sample project from web, while i run it, it gives me the following errors-</p>
  
  <pre><code>The type or namespace name 'Mvc' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)  
  </code></pre>
  
  <p>How to overcome this error?</p>