Terminating app due to uncaught exception 'NSGenericException', reason: 'Your application has presented a UIActivityViewController (<UIActivityViewController: 0x7fc8120f2800>). In its current trait environment, the modalPresentationStyle of a UIActivityViewController with this style is UIModalPresentationPopover. You must provide location information for this popover through the view controller's popoverPresentationController. You must provide either a sourceView and sourceRect or a barButtonItem. If this information is not known when you present the view controller, you may provide it in the UIPopoverPresentationControllerDelegate method -prepareForPopoverPresentation.'
*** First throw call stack:
(
0 CoreFoundation 0x00000001115f41bb __exceptionPreprocess + 331
1 libobjc.A.dylib 0x000000010f83d735 objc_exception_throw + 48
2 UIKitCore 0x00000001171f9ed1 -[UIPopoverPresentationController presentationTransitionWillBegin] + 3168
3 UIKitCore 0x000000011720387b __71-[UIPresentationController _initViewHierarchyForPresentationSuperview:]_block_invoke + 2495
4 UIKitCore 0x0000000117200e6b __56-[UIPresentationController runTransitionForCurrentState]_block_invoke + 468
5 UIKitCore 0x00000001179110d2 _runAfterCACommitDeferredBlocks + 318
6 UIKitCore 0x00000001178ffb2c _cleanUpAfterCAFlushAndRunDeferredBlocks + 384
7 UIKitCore 0x000000011792eefc _afterCACommitHandler + 135
8 CoreFoundation 0x0000000111558c27 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
9 CoreFoundation 0x00000001115530be __CFRunLoopDoObservers + 430
10 CoreFoundation 0x0000000111553751 __CFRunLoopRun + 1537
11 CoreFoundation 0x0000000111552e11 CFRunLoopRunSpecific + 625
12 GraphicsServices 0x0000000116b5c1dd GSEventRunModal + 62
13 UIKitCore 0x000000011790581d UIApplicationMain + 140
14 App 0x000000010e8a1d60 main + 48
15 libdyld.dylib 0x0000000112f64575 start + 1
)