The method SaveAppFile in xmp library does not work in iOS 9 The error below always happens.
fopen_failed: errno: 1 osErrorMessage: Operation not permitted Failed to open file. mode: w path: /var/containers/Bundle/Application/02889455-E827-43C8-B9AA-9E219D587127/Panorama.app/Amsterdam2.jpg --fopen_failed filename: /var/containers/Bundle/Application/02889455-E827-43C8-B9AA-9E219D587127/Panorama.app/Amsterdam2.jpg Failed to write complete file (7) --xmpWriteFileAndClose Failed. Failed.
This isn't a defect in the Chilkat library -- its just for some reason your app does not have permission to create or overwrite the given file.
Try writing non-Chilkat code to see if you can create or overwrite that same path. (Just write some junk for testing..) I would expect you'll hit the same error. Then solve that problem..