Saving google places objects to Core Data - terminating with uncaught exception of type NSException error

Question

I am trying to use CoreData to save and retrieve markers which a user marks onto a Google Maps through using an autocomplete widget. However I keep getting a 'libc++abi.dylib: terminating with uncaught exception of type NSException' error and am not sure why or what this means? It happens when I try and store the objects into Core Data.

Here is the relevant code:

    func viewController(_ viewController: GMSAutocompleteViewController, didAutocompleteWith place: GMSPlace) {
    self.place = place
    let camera = GMSCameraPosition.camera(withLatitude: place.coordinate.latitude, longitude: place.coordinate.longitude, zoom: 15.0)
    self.vwGMap.camera = camera
    let marker = GMSMarker()
    marker.position = CLLocationCoordinate2DMake(place.coordinate.latitude, place.coordinate.longitude)
    marker.title = place.name
    marker.snippet = place.formattedAddress
    marker.map = self.vwGMap
    marker.icon = GMSMarker.markerImage(with: UIColor.blue)
    marker.tracksViewChanges = true
    self.dismiss(animated: true, completion: nil)
    print("Place name: ", place.name)
    print("Place address: ", place.formattedAddress)
    print("Place placeID: ", place.placeID)
    print("Place attributions: ", place.attributions)
    print("Place Coordinate:", place.coordinate)
    //The printing only happens in the terminal

    let newPlaceName = place.name
    self.newPlaceName = place.name
    let newPlaceAddress = place.formattedAddress
    self.newPlaceAddress = place.formattedAddress!
    let newPlacePlaceID = place.placeID
    self.newPlacePlaceID = place.placeID

    let appDelegate = UIApplication.shared.delegate as! AppDelegate
    let context = appDelegate.persistentContainer.viewContext
    let newPlace = NSEntityDescription.insertNewObject(forEntityName: "StoredPlace", into: context)

    newPlace.setValue(newPlaceName, forKeyPath: "name")
    newPlace.setValue(newPlaceAddress, forKeyPath: "address")
    newPlace.setValue(newPlacePlaceID
        , forKeyPath: "placeID")

    do
    {
        try context.save()
        print("SAVED")
    }
    catch
    {
        //PROCESS ERROR
    }


}

perhaps I should be putting the the let appDelegate etc into viewDidLoad but I end up getting the same fatal error.

I have name, address, placeID set as attributes as type 'String' in the StoredPlace entity.

more about the error: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+entityForName: nil is not a legal NSManagedObjectContext parameter searching for entity name 'StoredPlace'' *** First throw call stack:

What does this error mean and how do i get around it?

helio helio · Accepted Answer · 2016-12-29T15:32:25

where is your Core Data methods ? in this ViewController or in AppDelegate ?

Saving google places objects to Core Data - terminating with uncaught exception of type NSException error

2 Answers