Chapter 4 -
I'm following the book, chapter by chapter. I'm on chapter 4 right now and I'm getting the error NullReferenceException was unhandled in hte line:
If mPhones.ContainsKey(location) Then
In Property Phone.
I wasn't able to figure out what's going on and neither found nothing on errata's section, so I just reported this error hoping to have a return from you.
Thanks for your time.
Paulo Ricardo Ferreira
Rio de Janeiro - Brasil