Since ~ 2 weeks is the german (and also others) localized version of Visual Studio 2005 available. I am using it for writing the second editon of my ASP.net 2.0 Crash Course Book (http://www.amazon.de/exec/obidos/ASIN/3860635328/qid%3D1117287946/sr%3D8-1/ref%3Dsr%5F8%5Fxs%5Fap%5Fi1%5Fxgl/303-5425337-4065013)
During doing some caching stuff i received following error message:
Bei zwischengespeicherten Benutzersteuerelementen oder zwischengespeicherten Masterseiten können keine Ersatzsteuerelemente verwendet werden.
I read this over and over again, but ... i didnt detected the sense
So i changed the uiculture attribut in the page declaration (UICulture="en-us"%>), only to receive the original error.
Substitution controls cannot be used in cached User Controls or cached Master Pages.
Now its clear, i have somewhere in usercontrol forgotten the substitution control.
This is the most common localization problem, that people who have no idea about the topic translation everything they get. In this case also the "Substitution Control" was translated to "Ersatzsteuerelement" which is in fact no german word. Google translate it back to english as "Spare control member" which is also quite funny.