Unable to retrieve CarrierName

Question

Using iPhone6, Xcode 8.1, running iOS 10.1.1, executing the following Swift code I keep getting

Unable to retrieve CarrierName

Error message appears before my first ViewController even loads. I searched for solutions to similar (but not same) CarrierName issues. Most of them recommend to import CoreTelephony. I Added the import of CoreTelephony but i still get the same error. Below is the code snippet that shows viewDidLoad followed by the console output. Any insights into this error?

//  ViewController.swift
//  MapLocator

import UIKit
import MapKit
import CoreLocation
import CoreTelephony


class ViewController: UIViewController, UISearchBarDelegate, MKMapViewDelegate,UINavigationControllerDelegate {
    var searchController:UISearchController!
    var annotation:MKAnnotation!
    var localSearchRequest1:MKLocalSearchRequest!
    var localSearchRequest2:MKLocalSearchRequest!
    var localSearch1:MKLocalSearch!
    var localSearch2:MKLocalSearch!
    var localSearchResponse1:MKLocalSearchResponse!
    var localSearchResponse2:MKLocalSearchResponse!
    var error:NSError!
    var pointAnnotation:MKPointAnnotation!
    var pinAnnotationView:MKPinAnnotationView!
    var placeMark1:MKPlacemark!
    var myRoute : MKRoute?
    var coord1 : CLLocationCoordinate2D!
    var coord2 : CLLocationCoordinate2D!
    //    var newPt : MKMapPoint!
    
    //    var lineArrayPtr = [MKMapPoint]()
    var lineArrayPtr:UnsafeMutablePointer<MKMapPoint>? = nil
    var pointIndex : Int = 0
    
    var lp1 : MKMapPoint!
    var lp2 : MKMapPoint!
    var lp3 : MKMapPoint!
    var lp4 : MKMapPoint!
    
    var searchButtonClicked = 0
    var buttonTouchCount : Double = 0
    let tapsPerMeter : Double = 2
    var pointsPerMeter : Double!
    var tapDistance : Double!
    
    //**************
    override func viewDidLoad() {
        super.viewDidLoad()
        mapView.delegate = self
        print("Entered viewDidLoad")
        
        let latitude_x: Double = 42.755139
        let longitude_x: Double = -71.584
        
        // Init the zoom level
        let coordinate:CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: latitude_x, longitude: longitude_x)
        //let span = MKCoordinateSpanMake(100, 80)
        let span = MKCoordinateSpanMake(0.01, 0.01)
        let region = MKCoordinateRegionMake(coordinate, span)
        self.mapView.setRegion(region, animated: true)
        print("mapView region set")
        
    }

********************* Console Output *********************** 2016-11-19 22:02:14.442048 MapLocator 3 Match[289:23903] [LogMessageLogging] 6.1 Unable to retrieve CarrierName. CTError: domain-2, code-5, errStr:((os/kern) failure)

Entered viewDidLoad

mapView region set

Where did you declare your mapView? I just ran into the same issue and I made a mistake by setting the mapView to the viewControllers view property and adding it as a subview. Then this log message appeared and the App froze. Might have nothing to do with your error though. — mjrehder, Jan 07 '17 at 12:35
A bit more info, but no solution https://forums.developer.apple.com/thread/69246 — Alexander Vasenin, Feb 07 '17 at 04:18
Did you get solution for this..? Im having the same problem..! — Anish Kodeboyina, May 26 '17 at 19:04

score 0 · Answer 1 · answered Nov 20 '16 at 07:51

0

Tray adding CoreTelephony to the AppDelegate maybe? You ViewController implementation is not accessing any CoreTelephony framework methods, thus your problem lies elsewhere.

answered Nov 20 '16 at 07:51

der_michael

3,151
1
24
43

Thank you for responding. Good suggestion but still getting the error. The strange thing is that I can put some code in my viewDidLoad function to read the carrier name and it reads correctly. Does that help solve this mystery? – davidwoj55 Nov 21 '16 at 23:41
1

Any luck? I too, am having this problem. – Noah G. Dec 06 '16 at 17:28

score 0 · Answer 2 · answered Dec 21 '16 at 19:00

0

On my iOS device this happens because Settings->Privacy->Location Settings<(app name)->Allow Location Settings isn't set to either "Never" or "While Using the App". Once I set it - it works.

answered Dec 21 '16 at 19:00

Vin

31
8

score 0 · Answer 3 · edited May 23 '17 at 12:34

As a solution to a different issue I did the following. Whether this fixes it or just suppresses the msg I don't know, as I was getting the msg but it was never crashing my app.

In Xcode

Click on your active scheme name right next to the Stop button
Click on Edit Scheme....
in Run (Debug) select the Arguments tab
in Environment Variables click +
add variable: OS_ACTIVITY_MODE = disable

credit here : https://stackoverflow.com/a/40160779

score 0 · Answer 4 · answered Jun 20 '17 at 22:09

0

Maybe this is a litle dumb but check that XCode Maps capabilities is active :) .

answered Jun 20 '17 at 22:09

Eva Madrazo

4,731
2
23
33

Unable to retrieve CarrierName

4 Answers4

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