Missing feature in module 4 of the developer learning path, is it correct?

I just finished up to module four of the developer learning path. I’ve noticed that two buttons aren’t implemented yet and give me warnings. Edit and Delete for attendees in the training event created. Are those treated along the way, or are they just missing?  Thanks in advance.
1 answers

No idea. But if they are keeping you from continuing, than just delete those two buttons. You can always add them again later on.