The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration.
Have you seen this error with a Visual Studio 2010 ASP.NET or Silverlight project? The configuration section ‘system.web.extensions’ cannot be read because it is missing a section declaration. I’ve been wrestling with it for the last hour and I just found the answer. In a web browser, it appears as an HTTP Error 500.19 – […]
Update 12/24/2010 – Check out my follow up to this post. Silverlight is great. Silverlight 4 is extra great. If you know a little bit about WPF and a handful about the ViewModel Pattern, you’re in great shape. If you’re like me, you tend to mock up your user interfaces and user interface functionality using […]