title: This Stream Does Not Support Seek Operations
body: <p>This is a follow-up to: <a href="https://stackoverflow.com/questions/6295359/getting-started-with-asp-net-mvc3-google-checkout-take-2">Getting Started With ASP.NET MVC3 &amp; Google Checkout: Take 2</a></p>
  
  <p>It seems that the problem why I'm getting a Bad Request (400 error) - refer to the topic above - is because of this error. Checkout the screen shot below:</p>
  
  <p><img src="https://i.stack.imgur.com/oUfN3.jpg" alt="enter image description here"></p>
  
  <p>So as you can see, there's an exception being thrown and that's probably what's causing all the mess. I tried using a <code>MemoryStream</code> but I got an exception telling me that it cannot cast a <code>System.Net.ConnectStream</code> to a <code>MemoryStream</code>. So how can I solve this problem?</p>