I'm dealing with problem in Visual Studio 2010. When I edit something in Generic.xaml, getting this error message:
System.ArgumentException was thrown on "..\Themes\Generic.xaml": GenericArguments, 'System.Object', on '*.RegistersBaseClass`1[T]' violates the constraint of type
This problem causes the IntelliSense stops working which is very annoying. After build solution error message disapears for a few seconds and IntelliSense starts working again. But after that few seconds same error again.
This problem occurred after I created new custom control called "RegisterBaseClass" but I didn't notice that there is already exists class (a generic class and ofc not a Control) with same name. After i remove this error, problem mentioned above
still persist. I can guarantee that Generic.xaml contains no mention of RegisterBaseClass.