Link to the lesson.
okay, I was using the single quote mark when I should have been using the very similar looking tilda located next to the #1.
I got stuck on exactly this same thing, and the silly thing is that the project video gets it wrong too, and the person doing it doesn’t even notice.
(ETA: The video doesn’t get it wrong in the same way, mind you. The video gets it wrong because Bryan writes
Hello, $username instead of