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Home/ Questions/Q 7607643
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Editorial Team
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Editorial Team
Asked: May 31, 20262026-05-31T00:42:58+00:00 2026-05-31T00:42:58+00:00

How come I get this error when I’m declaring the code statement below? use

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How come I get this error when I’m declaring the code statement below?

use of undeclared identifier ‘NSMigratePersistentStoresAutomaticallyOption’

NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];

What am I missing in order to get this to recognize my NSMigratePersistentStoresAutomaticallyOption constant?

Thanks,

Mike

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  1. Editorial Team
    Editorial Team
    2026-05-31T00:42:59+00:00Added an answer on May 31, 2026 at 12:42 am

    NSMigratePersistentStoresAutomaticallyOption is declared in NSPersistentStoreCoordinator.h. Are you sure that that is included or forwarded wherever you’re building that dictionary (like by including CoreData.h)?

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