ервый раз, когда я работаю со службами определения местоположения и у меня появляется ошибка компоновщика:

Неопределенные символы для архитектуры i386: "_OBJC_CLASS _ $ _ CLLocationManager"

Я добавил#import <CoreLocation/CoreLocation.h> и добавил следующие строки вviewDidLoad

 CLLocationManager *manager = [[CLLocationManager alloc] init];
manager.delegate = self;
[manager startUpdatingLocation];
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;

if (![CLLocationManager locationServicesEnabled]){
    UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled. If you proceed, you will be asked to confirm whether location services should be reenabled." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [servicesDisabledAlert show];
    [servicesDisabledAlert release];
}
[manager release];