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

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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 https://www.raywenderlich.com/3444-beginning-core-data/lessons/5
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Xcodes crashing every time I build and run the project? Does it have to anything with core data?

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

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