So glad to hear it is working for you now!
I investigated the issue earlier today and added a few more error handlers to the script’s ingestion of titles from PragProg, making it more resilient. I also updated the package.json to remove that initial error you saw.
You can find the latest code on the book’s GitHub repository. Nothing substantially changed, except for the addition of error handlers and the removal of the initial warning.
Appreciate you bringing it up here!
Ben