title: Error using haarcascade_profileface.xml
body: <p>I am writing a program in C# using Visual Studio Express 2013 for Windows Desktop. I want to detect faces that are in profile, so just one eye is visible. I am using haarcascade_profileface.xml for the detection. Every time I try to debug my code I receive this error message:</p>
  
  <blockquote>
    <p><em>Error of type "Emgu.CV.Util.CvException" has occurred in Emgu.CV.dll. Additional Information: OpenCV: The node does not represent a user
    object (unknown type?)</em></p>
  </blockquote>
  
  <p>I use the same code that I use with haarcascade_frontalface_default.xml and with this xml it works.</p>
  
  <p>I really need help. Please help me.
  Thanks, B</p>