I have just started using TFS build and my build was keep on failing and showing errors like Type ‘RadTextBox’ is not defined, Type ‘Telerik.Web.UI.GridCommandEventArgs’ is not defined, : Name ‘RadGrid’ is not declared. My local build was working with out any issues. I spend hours for a solution and finally I get it. This may help someone as well.
Add Telerik.Web.UI.dll to source control, check in and Queue New Build…!