title: Dynamics CRM 2011 Developer - error on build
body: <p>In Visual Studio 2010, I created a dynamics package project (Y), and a dynamics plugin project (X), following the tutorial here: 
  <a href="http://inogic.blogspot.com/2011/11/crm-2011-developer-toolkit.html#comment-form" rel="nofollow">http://inogic.blogspot.com/2011/11/crm-2011-developer-toolkit.html#comment-form</a></p>
  
  <p>The Package Project (Y) references the plugin project (X).</p>
  
  <p>After adding these 2 projects to the solution, I get this error on build:</p>
  
  <blockquote>
    <p>The item "...\X.csproj" in item list "ProjectReference" does not
    define a value for metadata "SilverlightApplication".  In order to use
    this metadata, either qualify it by specifying
    %(ProjectReference.SilverlightApplication), or ensure that all items
    in this list define a value for this metadata.</p>
  </blockquote>
  
  <p>I have no idea how to fix this. Can anybody help ?</p>