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POCompilation error with Xcode 4.2
 

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  1. POCompilation error with Xcode 4.2
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    <p>ok, I think I am officially going nuts...trying to run this code on xcode 4.2 with iOS 5.0 simulator and getting all sorts of errors. In this app, all I am trying to do is to run the core location API.</p> <p>My location "controller" class:</p> <p>.h:</p> <pre><code>#import Foundation/Foundation.h #import CoreLocation/CoreLocation.h @protocol locationReceiverDelegate @required - (void)locationUpdate:(CLLocation *)location; - (void)locationError:(NSError *)error; @end @interface locationReceiver : NSObject &lt;CLLocationManagerDelegate&gt; { CLLocationManager *locMgr; id delegate; } @property (nonatomic, retain) CLLocationManager *locMgr; @property (nonatomic, assign) id delegate; @end </code></pre> <p>.m:</p> <pre><code>#import "locationReceiver.h" @implementation locationReceiver @synthesize locMgr, delegate; - (id)init { self = [super init]; if(self != nil) { self.locMgr = [[CLLocationManager alloc] init]; self.locMgr.delegate = self; } return self; } - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { // if([self.delegate conformsToProtocol:@protocol(locationReceiverDelegate)]) { [self.delegate locationUpdate:newLocation]; // } } - (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error { // if([self.delegate conformsToProtocol:@protocol(locationReceiverDelegate)]) { [self.delegate locationError:error]; // } } @end </code></pre> <p>I am getting an error in the .m file that "@synthesize locMgr, delegate;" that "Existing ivar 'delegate' for assign property 'delegate' must be _unsafe_unretained"</p>
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    1. USJohn Saunders
    1. USTommyG
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      1. POCompilation error with Xcode 4.2
      1. USTommyG
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      1. VTUpMod
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    1. COThis might not be your problem, but there's a type mismatch between the ivar and the property: the ivar is an `id`, but the property is an `id<locationReceiverDelegate>`.
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      1. POCompilation error with Xcode 4.2
      1. USzneak
    2. COAsk this on the Apple developer forums, Xcode 4.2 is unreleased and we cannot answer ARC questions here.
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      1. POCompilation error with Xcode 4.2
      1. USKendall Helmstetter Gelner
 

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