How to use tourguide.next()

[azizimusa]

My app always crash whenever I using myTour.next(). I define it like this :

TourGuide first_tour = TourGuide.init.....
...
...

first_tour.playOn(view);

TourGuide second_tour = TourGuide.init.....
...
...

second_tour.playLater(view);

and then, when i cleanup the 1st tour, then called second_tour.next(). App crash. Please advise.