I finished day 78. This was a somewhat difficult challenge but I got through it. I did have to go back and look at the previous projects to get it all working.
If you’re using the simulator rather than a real device, you can fake a location by going to the Debug menu and choosing Location > Apple.
On mine, it was under the Features menu
Also, I did not implement this:
Tip: If you want to make your app really useful, try setting the sourceType property of your image picker controller to .camera so that it lets user take new photos rather than import existing ones.
I’m not seeing where to set this. After doing some searching online, it looks more complicated to figure out than what I want to do at the moment. If I decide I want to use that functionality at a later time I’ll into it, or maybe I’ll post about it on the forum.