Hi,

I just went through the tutorial "Visual Studio 2005 Web Application Project" and I ran into compilation issues with my non-control, classes that were, initially in my App_Code folder.  I had converted my web site project to a web app project.  For whatever reason, I could not get those classes and namespaces to be recognized.

I realized it must be the build action because the classes are not web content but provide services to those pages like helper functions and so on.  I moved these classes to a structured folder, out of the Old_App_Code folder and then for each .cs file, I set the Build Action to Compile.  Now my namespaces and classes are recognized.

I hope this helps someone else who may be having this problem.  It would also be a good idea to add this to the aforementioned tutorial in regards to the classes placed in the App_Code folder in the original web site project that's to be converted. :)