核心数据迁移问题-导致应用崩溃

Question

I have used cord data in my application, its already uploaded and live on app store. Now I want to upload a new version with some changes in core data but application is crashing with following error -

reason = "Can't find model for source store"; 

My code is already having atomic migration here is the code

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

NSError *error = nil;
_persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc]
                               initWithManagedObjectModel:[self managedObjectModel]];

if(![_persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType
                                              configuration:nil URL:storeUrl options:options error:&error])

I read the apple documentation and try to use

- (BOOL)migrateStore:(NSURL *)storeURL toVersionTwoStore:(NSURL *)dstStoreURL error:(NSError **)outError

But how I find destination and source StoreURL here? From where should I call this method? And how?

Please give some suggestions to solve this problem.

Answer 1

I have solved this problem with the help of this tutorial.

http://code.tutsplus.com/tutorials/core-data-from-scratch-migrations--cms-21844

Worth reading... :) Enjoy