Updated datasets for InfraWorks and InfraWorks 360 Essentials have been posted to Wiley's web page for the book.
If you've installed the latest update for InfraWorks, be sure to re-download the datasets and use the ReadMe file as you work through the exercises. There are important things you need to know about subtle changes that had to be made to some of the exercise steps, object names, etc.
I've had a few e-mails from folks who are trying to work through the book with InfraWorks 2014. No can do. If you've got 2014 I'm afraid the book's datasets simply won't open. The book was written for the 2015 release and now the datasets have been updated for the latest 2015.2 update.
If you have issues or questions, feel free to e-mail firstname.lastname@example.org.