在以下方法之间的调用是不明确的:id . namespace . initializecomponent()和id . namespace . initializecomponent ()

Ok, I suspect this might be a Visual Studio thing, but there must be some reason for this. I created from the list of default items a ListBox (Right Click on project, or folder in project -> Add -> New Item -> Xaml ListBox). Immediately I get a red squiggly line with the error: Ok, I suspect this might be a Visual Studio thi