title: The 'clr-namespace' URI refers to a namespace that is not included in the assembly
body: <p>I'm trying to include in my XAML some classes which convert values.  However, I'm getting the following error when I compile:</p>
  
  <blockquote>
    <p>Undefined CLR namespace. The 'clr-namespace' URI refers to a namespace 'View.Summary.Converters' that is not included in the assembly.(View\View)</p>
  </blockquote>
  
  <p>And the XAML it's erroring on:</p>
  
  <pre><code>xmlns:c="clr-namespace:View.Summary.Converters"
  </code></pre>
  
  <p>Also, here is the outline of my conversion classes/namespace:</p>
  
  <pre><code>namespace View.Summary.Converters
  {
      class CollapsedIfNegative : IValueConverter { }
  
      class VisibleIfNegative : IValueConverter { }
  
      class ErrorCodeToString : IValueConverter { }
  }
  </code></pre>
  
  <p>I had to remove the guts of the code because the project I am working on is highly confidential.</p>