After following all the instructions and setting my Yelp key (yelpKey = 'XUIZWfXpVG41viH6ebRWsw'), the app only displays a blank page with the "City Bars" title. Nothing else.
I've also downloaded the Citybars670.xda. The result is exactly the same (see in attachment). What should be done ? I'm really stuck with this "first mobile app" and I guess that there's something wrong in the code or that some basic instruction is missing. Thanks in advance.