title: Error with using "dynamic" keyword in Silverlight app
body: <p>I get the following error:
  "One or more types required to compile a dynamic expression cannot be found. Are you missing references to Microsoft.CSharp.dll and System.Core.dll"</p>
  
  <p>I do have System.Core.dll, do have I to find Microsoft.CSharp somewhere? It wasn't part of the project and it isn't in the references list.</p>