ReverseGeoCoder Fail Error in Mapkit

I am making the ReverseGeoCoder request with the following latitude and longitude

Latitude = 37.296740 Longitude = -122.001878

I am getting an error as "/SourceCache/ProtocolBuf开发者_开发百科fer/ProtocolBuffer-19/Runtime/PBRequester.m:446 server returned error: 503"

With the ReverseGeoCoder fail message as "Error Domain=PBRequesterErrorDomain Code=6001 "Operation could not be completed. (PBRequesterErrorDomain error 6001.)"

This is my piece of code :

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
    [super viewDidLoad];


  NSLog(@"Geocoordinates : %f, %f", geoCoord.latitude, geoCoord.longitude);
  MKReverseGeocoder *geocoder=[[MKReverseGeocoder alloc] initWithCoordinate:geoCoord];
  geocoder.delegate=self;
  [geocoder start];

}


#pragma mark -
#pragma mark Geocoder Delegate Methods

- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error{
  NSLog(@"ReverseGeoCoder did fail : %@", [error description]);

}

- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)placemark{
  NSLog(@"Geocoder completed = %@", [placemark addressDictionary]);



}


Output:
========
Geocoordinates : 40.725135, -74.002087
/SourceCache/ProtocolBuffer/ProtocolBuffer-19/Runtime/PBRequester.m:446 server returned error: 503
2010-06-15 11:08:29.819 Hotlist[2253:207] ReverseGeoCoder did fail : Error Domain=PBRequesterErrorDomain Code=6001 "Operation could not be completed. (PBRequesterErrorDomain error 6001.)"

What is this error due to ??

Any ideas ??

Thanks

Nothing looks out of place in your code. You are getting a server 503 back so perhaps you are being denied due to excessive request volume or request rate. Have you tried this on a second device or development machine with a different external IP address (not just another device behind the same NAT or proxy) or simply after waiting a good period of time.

There is some discussion of others hitting this due to frequency or volume on this external site:

http://www.iphonedevsdk.com/forum/iphone-sdk-development/31883-pbrequestererrordomain-errors-reverse-geocoding.html