[course][error] Advanced iOS11 Mastering Push Notification -Using iCloud

but when i run App at my ipad mini , show the
CKError Not Authenticated 9/1002 , CloudKit access was denied by user settings Retry after 3.0

solution:
1. login Apple id in Simulate
2. make sure the iCloud Dive is on

save 123 to title

123 was saved to title.