title: How come classes in subfolders in my App_Code folder are not being found correctly?
body: <p>I am getting the following error when I put class files in subfolders of my App_Code folder:</p>
  
  <p>errorCS0246: The type or namespace name 'MyClassName' could not be found (are you missing a using directive or an assembly reference?)</p>
  
  <p>This class is not in a namespace at all. Any ideas?</p>