I have converted my old VS2008 Website to Web Application, now everything was working before I tried to convert it. But now I don't seem to be able to reference my Classes? For example I have a BasePage class that every .aspx page inherits like so
public partial class SomePageName : BasePage
{
}
But now I get this message? And the same for all the other classes?
The type or namespace name 'BasePage' could not be found (are you missing a using directive or an assembly reference?)
How do I find out which 'using' directive I am missing and whats an assembly reference?