You should use phoenix in version 1.4 for that book… It’s as unreleased as the book though, you need to take some extra steps to use and install that version.
Please either use a version matching your learning resources or use resources matching your version.
I wouldn’t rely on unreleased versions for the purpose of learning though…
Since I wanted to buy a book, I bought the one that will be the near future.
I guess it will be better to install Phoenix 1.4 dev, then.
Let’s find out how to install it.
Thanks @NobbZ
I have the same book and came acrros the same problem, the thing is that if you read carefully in the book is stated “Key in these changes within your empty change function” which means that the file itself is the way it supposed to be you just need to update it to look like the one in the book.
Yes, I found the solution some time afterwards.
Not being native in English also means, at least for me, to overlook some expressions and take a wrong meaning from what I’m not reading carefully enough.