CoreData 'This NSPersistentStoreCoordinator has no persistent stores. It cannot perform a save operation.'

Question

I have been following these instructions to help integrate iCloud support with CoreData and I am getting some errors.

I have this in my AppDelegate:

Answer 1

For me, I found addPersistentStoreWithType always returns nil in my case. So the persistent store wasn't created successfully. Then, I print the storeURL

~/Library/Developer/CoreSimulator/Devices/1F8C6299-1F80-4212-9FE2-CA33BD365851/data/Containers/Data/Application/9CA7B7BB-A835-4BC2-B12D-23B84D420F91/Library/Documentation/my-database.sqlite

This is a directory in which we can't write data. So I checked my code and found a silly mistake.

• I should use NSDocumentDirectory instead of NSDocumentationDirectory. Code completion in Xcode offers the documentation directory before the document directory enum.

• When I used NSDocumentationDirectory, NSPersistentStoreCoordinator always tried to create the persist store in .../Library/Documentation/my-database.sqlite, which is an invalid path.

• Instead, the correct path should be .../Documents/BeeLocation.sqlite.