gistfile1.m

NSString *storePath = [[[selfapplicationDocumentsDirectory] URLByAppendingPathComponent: @"CoreDataStore.sqlite"] path];
    // Check if the store exists in. 
    if (![[NSFileManagerdefaultManager] fileExistsAtPath:storePath]) {
        // copy the payload to the store location.
        NSString *bundlePath = [[NSBundlemainBundle] bundlePath];
        NSString *bundleStore = [bundlePath stringByAppendingPathComponent:@"persistentStore"];
        NSError *error = nil;
        [[NSFileManagerdefaultManager] copyItemAtPath:bundleStore toPath:storePath error:&error];