iOS App crashes at segue (breakpoint occurs at func prepareForSegue)

Question

Update: I figuire out, it\'s very hard to debug just by reading through the code, especially in a situation like this,https://www.dropbox.com/s/ty3clsvgednzevj/LoaferMap

Answer 1

segue.destinationViewController

is not destinationViewController this class is a UINavigationController

you have to set latitude and longitude to UINavigationController's rootViewController

please edit like this