ios - EKEventViewController doesn't show event details -


i'm working in ios11b6 , section of code open event in ekeventviewcontroller doesn't show event details - shows 'new event', 'january 1, 2001', 'untitled calendar'.

the section of code display event below (works fine in ios10)

func openevent() {     eventidentifier = eventclipboardidentifier      let eventviewcontroller = ekeventviewcontroller.init()     eventviewcontroller.event = self.geteventfromeventclipboard()     print(eventviewcontroller.event.title)      eventviewcontroller.delegate = self     eventviewcontroller.allowscalendarpreview = false     eventviewcontroller.allowsediting = true      let navbar = uinavigationcontroller(rootviewcontroller: eventviewcontroller)     print(eventviewcontroller.event.title)      present(navbar, animated: true, completion: nil) }

the error getting in xcode debugger below.

2017-08-20 20:25:48.001329+1000 calendarapp[1113:281191] *** -[__nscfcalendar components:fromdate:]: date cannot nil future exception. few of these errors going reported complaint, further violations ignored. here backtrace occurred time (some frames may missing due compiler optimizations):

the last print command verify event hitting eventviewcontroller , looking ok.

when 'edit' event in ekeventviewcontroller (with incorrect information), ekeventviewcontroller loads correctly.

i had @ beta documentation , can't find information ekeventviewcontroller.

any ideas?


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