The application crash fist time While asking for permission to open Camera roll.
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Attempting to begin a modal transition from to while a transition is already in progress. Wait for viewDidAppear/viewDidDisappear to know the current transition has completed'
Are you trying the demo app? On what device / OS version?
Can you attach a backtrace?