macOS Linking Errors

[nujjus]

Hi!

I was wondering if anyone might know why I get the following linking errors when I try to compile and run the Apple CoreLocation sample code:


"_kCLLocationAccuracyKilometer", referenced from:
_kCLLocationAccuracyKilmoeter$non_lazy_ptr in MyLocationGetter.o

and

".objc_class_name_CLLocationManager", referened from:
literal-pointer@__OBJC@__cls_refs@CLLocationManager in MyLocationGetter.o
symbol(s) not found
collect2: ld returned 1 exit status


In my header file, I've imported <CoreLocation/CoreLocation.h> and I've declared locationManager as a class property. The class extends NSObject and conforms to CLLocationManagerDelegate.



My .m file looks like this:

#import "MyLocationGetter.h"

@implementation MyLocationGetter 

@synthesize locationManager;

- (void)startUpdates 
{ 
	// Create the location manager if this object does not 
	// already have one. 
	if (nil == locationManager) 
		locationManager = [[CLLocationManager alloc] init];		//it appears to have beef with CLLocationManager
	locationManager.delegate = self; 
	locationManager.distanceFilter = 1000; // 1 kilometer 
	locationManager.desiredAccuracy = kCLLocationAccuracyKilometer;		//it appears to have beef with kCLLocationaccuracyKilometer
	[locationManager startUpdatingLocation]; 
}

Any help is appreciated, thanks!

 

[Cromulent]

Have you included the relevant frameworks in your project?

 

[nujjus]

I thought so..

my header file has both:

#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>


Looking into the framework, CoreLocation has:

#ifndef __CORELOCATION__
#define __CORELOCATION__

#import <CoreLocation/CLLocation.h>
#import <CoreLocation/CLLocationManager.h>
#import <CoreLocation/CLLocationManagerDelegate.h>

#endif /* __CORELOCATION__ */

which includes what I need.

 

[Cromulent]

No you actually need to add the framework to your project. Just including the header files is not enough.

 

[nujjus]

Thank you SO much!!