How can I resolve this error: Loading the include file 'EF.Utility.CS.ttinclude' returned a null or empty string
问题 How can I resolve these errors: Loading the include file 'EF.Utility.CS.ttinclude' returned a null or empty string. Value does not fall within the expected range. Tools Used: VS 2012, Entity Framework 5.0.0, T4MVCExtensions 3.5.0, .NET Framework 4.5 I've been using EF and T4 templates in a project within a large MVC solution without incident. Now, when I right-click on the edmx diagram, EF responds with the message: Value does not fall within the expected range. When I compile the EF project