Episide 154 broken?

[ryanb]

From a GitHub message:

I've been following Episode 154 and have struck an issue.
I also downloaded the code for that episode at it appears that the same error is appearing there.
The code between mine and the one on your source at the same.
The error i am getting is

You have a nil object when you didn't expect it!
The error occurred while evaluating nil.comments