title: Could not load type 'System.Net.Http.HttpClientExtensions' from assembly 'System.Net.Http.Formatting
body: <p>How can get rid of this problem? I have asp.net MVC 4.0 beta installed on my machine, as I have read in some forum that it is creating conflict, and if you uninstall it should work fine. However, my concern is that do I have to reinstall the MVC 4.0 beta to make the web application work built using MVC 4.0 beta. don't know really.</p>
  <p>your answer will be appreciated.</p>
  <blockquote>
  <p>Could not load type 'System.Net.Http.HttpClientExtensions' from
  assembly 'System.Net.Http.Formatting, Version=4.0.0.0,
  Culture=neutral, PublicKeyToken=31bf3856ad364e35'.</p>
  </blockquote>
  <pre><code>class Program
  {
      static void Main(string[] args)
      {
  
          using (var httpClient = new HttpClient())
          {
              try
              {
                  var responseStartSchecdule = httpClient.PostAsJsonAsync(
                  &quot;http://dev02.xav.com/api/Track/StartScheduleRumble&quot;,
                  CancellationToken.None
              ).IsCompleted;
                  
                  var responseFinishSchecdule = httpClient.PostAsJsonAsync(
                  &quot;http://dev02.xav.com/api/Track/FinishRumble&quot;,
                  CancellationToken.None
              ).IsCompleted;
                  
              }
              catch (Exception)
              {
                  // add tracing implementation here to trace if there is some error      
              }
          }
  
      }
  
  </code></pre>