MKErrorDomain error 4 iPhone

Question

I keep getting this randomly when I run my gps app I'm building. It doesn't happen everytime, and the coordinates passed in are always valid (i nslog them). Is there documentation for these somewhere?

EDIT:

CLLocationCoordinate2D coord = CLLocationCoordinate2DMake(locManager.location.coordinate.latitude, locManager.location.coordinate.longitude);
geocoder1 = [[MKReverseGeocoder alloc] initWithCoordinate:coord];
geocoder1.delegate = self;
[geocoder1 start];

and then about half the time it returns an error. I tried releasing and re-assigning the geocoder if there was an error, but that didn't help. Only thing that did was restarting the app.

Answer 1

In "MKTypes.h" in the MapKit framework, the following is defined:

Error constants for the Map Kit framework.

enum MKErrorCode {
   MKErrorUnknown = 1,
   MKErrorServerFailure,
   MKErrorLoadingThrottled,
   MKErrorPlacemarkNotFound,
};

...

MKErrorPlacemarkNotFound

The specified placemark could not be found.

This sounds like you are referencing some unknown placemark in your code? Or it could be that Google doesn't have a name for the position you are passing - however valid the coordinates may be.

Answer 2

Actually, I am running into this problem as well. Code is extremely compact

//1. ask map for current coords

CLLocationCoordinate2D userLocation;

userLocation.latitude = [[_theMapView.userLocation location] coordinate].latitude; userLocation.longitude = [[_theMapView.userLocation location] coordinate].longitude;

NSLog(@"%f, %f",userLocation.latitude,userLocation.longitude);

//2. reverse geocode coords

MKReverseGeocoder *reverseGeocoder = [[MKReverseGeocoder alloc] initWithCoordinate:userLocation];

[reverseGeocoder setDelegate:self];

[reverseGeocoder start];

and later simply NSLog the error in the fail delegate method. It works the first time or two, then stops working

Answer 3

I just got done with a lot of research on this problem and it seems to be outside of our hands. I checked the developer forums as well as all around Stack and elsewhere and no one has a solution other than using a different service. There is a pretty good thread at https://devforums.apple.com/message/154126 on the subject.

Some people find the error after a certain time, I just find it to be out for a while and then comes back. I looked at the "Current Address" sample code and I couldn't see how I might have messed up. I ran the sample code and sure enough, it was NSLogging errors instead of returning a location.

This link has some code using Google's reverse geocoder: http://www.iphonedevsdk.com/forum/iphone-sdk-development/31883-pbrequestererrordomain-errors-reverse-geocoding.html#post155793