title: getting error when adding a class in codeigniter
body: <p>I am using a Facedtector class for my work. I added the class in my Codeigniter libraries folder and just called from my controller class. In my controller I also loaded the class but run time it is showing following error:</p>
  
  <p>An Error Was Encountered</p>
  
  <p>Non-existent class: FaceDetector</p>
  
  <p>Please anyone can help me about this.</p>
  
  <p>Thanks</p>