title: Failed to create the wrapper assembly for type library
body: <p>I reference:</p>
  
  <pre><code>open FSharp.Charting
  open System.Drawing
  </code></pre>
  
  <p>In my project, I added to the references <code>System.Drawing.dll</code> which is the only one that comes as ".dll" - weird.</p>
  
  <p>I get the following error message:</p>
  
  <blockquote>
    <p>Warning   6   Failed to create the wrapper assembly for type library
    "System.Drawing.dll". Type library 'System_Drawing' was exported from
    a CLR assembly and cannot be re-imported as a CLR assembly.</p>
  </blockquote>
  
  <p>What is going on?</p>