Beginning Core Data - Part 5: Attribute Types | Ray Wenderlich

As you start to build your objects, you'll need to both get them and then to sort them. This video will walk you through the process.

This is a companion discussion topic for the original entry at

Xcodes crashing every time I build and run the project? Does it have to anything with core data?

I had the same problem. Maybe you can try to do ‘Erase all content and settings’ in the simulator and build again.

Need to delete the app from the simulator after changing the core data schema and then run it again.