My installation of VS2013 (Express) has an annoying problem with IntelliSense. Sometimes after adding an element to the XAML, it is not recognized in the code behind without doing a Clean or a Build of the project. Often, when loading the project, or after some edit, names of XAML elements in my code behind have the red squiggly underline that I can only clear with a Build.
This behavior is new for VS2013. Previous editions always immediately recognized newly added elements in XAML.
Is there some setting that I am missing (perhaps changed to make the designer more performant)?