According to the book, on page 92, when you execute the application, it's supposed to create the database if it does not exist. It does not do this. Anyone have any ideas?

I found that if I change the Data Source=(localdb)\v11.0; to Data Source=.\; then it works. I have SQL Express 2014 installed in the default instance (MSSQLSERVER).
However, because I store the files on OneDrive, there are access issues. I had to remove the AttachDBFilename clause while I'm troubleshooting this issue.

Thanks for posting the solution, glad it's working for you now.

Jon