Swift4 and ObjC, No type or protocol named

Hi,

I Have this code on my project:

import CoreLocation

class GPS: NSObject, CLLocationManagerDelegate {
...
...
}

and I get an error while building on the "MyProyect-Swift.h"

No type or protocol named 'CLLocationManagerDelegate'

This is the code generated:

...
...
@import CoreLocation;
...
...
@class CLLocationManager;
@class CLLocation;

SWIFT_CLASS("_TtC6Torneo3GPS")
@interface GPS : NSObject <CLLocationManagerDelegate>
...
...
@end
...
...

Any idea?

Tnaks.