Core data: Unable to load class named "CDAccount"

ios objective-c core-data ios8 nsmanagedobject
Mason picture Mason · Sep 13, 2014 · Viewed 7.3k times · Source

I've recently downloaded iOS 8 to make sure that my existing app works properly with it, but I'm getting a warning in the debugger on launch:

"CoreData: warning: Unable to load class named 'CDAccount' for entity 'CDAccount'.  
Class not found, using default NSManagedObject instead."

After some research, it seems like people have had similar issues when using Core Data in Swift, but all my code is in Objective-C (and the data model hasn't changed for at least 6 months).

Any advice is much appreciated, I'm really nervous that my app isn't going to function properly once people start upgrading to iOS 8!

Answer

Dylan Moore picture Dylan Moore · Sep 17, 2014

I had the exact same problem in Objective-C and Xcode 6. For some reason, Xcode had removed my 'CustomNSManagedObject'.m classes from my Compile Sources.

Go to your project target -> Build Phases -> Compile Sources and use the + button to add CDAccount.m

If you are using Mogenerator to create a _CDAccount.m file, add that to your Compile Sources as well.

Related questions

Core Data: Quickest way to delete all instances of an entity

I'm using Core Data to locally persist results from a Web Services call. The web service returns the full object model for, let's say, "Cars" - could be about 2000 of them (and I can't make the Web Service return anything …

Read More
Sqlite File Location Core Data

Typically, the sqlite store file for core data apps is located in Library>Application Support>iPhone Simulator>7.1(or whichever version you are using)>Applications>(Whichever folder contains your app)>Documents folder, but I can't …

Read More
How to store an image in core data

I'm new to iOS. I've been trying to make an application that will store an image captured from the camera into CoreData. I now know how to store data like NSStrings, NSDate and other type but struggling to store an …

Read More