title: Relative pack URI not working
body: <p>I have a couple of images in an Img folder on my project and all those images are set to Build Action: Resource.</p>
  
  <p>I used to refer to all those images with relative URIs, like this:</p>
  
  <pre><code>new Uri("Img/image.png", UriKind.Relative);
  </code></pre>
  
  <p>I'm not sure whats changed, but it suddenly stopped working and the images are not found.
  I now have to refer them like this:</p>
  
  <pre><code>new Uri("pack://application:,,,/MyApp;component/Img/image.png");
  </code></pre>
  
  <p>In order for them to work. I can't figure out why did relative paths suddenly stopped working. (Relative paths are still working in the XAML)</p>