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iOS Build a Diary App Using Core Data Inserting and Saving Data Inserting a Managed Object

Posted by Zach Studdiford
Zach Studdiford
6,212 Points

Error in Inserting Managed Object

When I ran the Diary Application and clicked "Done", it gave me an error, and I cannot figure out what the problem is and how to fix it.

The error message says the reason is that "the model used to open the store is incompatible with the one used to create the store".

Melynda Scharf
Melynda Scharf
4,448 Points
Melynda Scharf
Melynda Scharf
4,448 Points

Hi Kirk, I'm not sure if there is a good way to share the code you are using, but if there is, that could be helpful. It sounds like you might have modified the data model. Maybe added an attribute or something like that? Or maybe a small typo between the data model and the store?

Mahesh Babu
Mahesh Babu
3,402 Points
Mahesh Babu
Mahesh Babu
3,402 Points

Okay if you are using the latest version of Xcode, the Bar Button Item is too cranky to go in the right place if we add it as the Teacher did, We have to open the Document Outline and explicitly add it in the Table View and for the action to be safe you can drag it from the Document outline to your NewEntryViewController.m file. Try this once and let me know or else i will help you out !

Kyle Case
Kyle Case
44,857 Points
Kyle Case
Kyle Case
44,857 Points

Hello, I had the same issue. For me, I was typing the code as it was shown in the video. When updating the applictionDocumentsDirectory, my autocomplete inserted: NSDocumentationDirectory, when it should be NSDocumentDirectory.

-----CORRECT ANSWER----- NSURL *url = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];

-----WRONG ANSWER----- NSURL *url = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentationDirectory inDomains:NSUserDomainMask] lastObject];