I have the below UITableViewController attached as a searchResultsController:

```
import UIKit
import MapKit

class LocationSearchTable : UITableViewController {
    var matchingItems:[MKMapItem] = []
    var mapView: MKMapView? = nil

    override func viewDidLoad() {
        super.viewDidLoad()

        tableView.dataSource = self
        tableView.delegate = self
    }
}

extension LocationSearchTable : UISearchResultsUpdating {
    func updateSearchResults(for searchController: UISearchController){
        guard let mapView = mapView,
            let searchBarText = searchController.searchBar.text else { return }
        let request = MKLocalSearchRequest()
        request.naturalLanguageQuery = searchBarText
        request.region = mapView.region
        let search = MKLocalSearch(request: request)
        search.start { response, _ in
            guard let response = response else {
                return
            }
            self.matchingItems = response.mapItems
            self.tableView.reloadData()
        }
    }

}

extension LocationSearchTable {
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        print(matchingItems.count)
        return matchingItems.count
    }

     func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell")!
        let selectedItem = matchingItems[indexPath.row].placemark
        cell.textLabel?.text = selectedItem.name
        cell.detailTextLabel?.text = ""
        return cell
    }
}

```

[![enter image description here](https://i.stack.imgur.com/pKskF.png)](https://i.stack.imgur.com/pKskF.png)[![enter image description here](https://i.stack.imgur.com/28oTA.png)](https://i.stack.imgur.com/28oTA.png)

Here it crashed once `matchingItems.count` is no equal to 0 for example:

> 
> 0 0 10 2016-10-20 15:43:53.914 ios-App[9137:977735] **\* Assertion
>  failure in -[UITableView \_configureCellForDisplay:forIndexPath:],
>  /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit\_Sim/UIKit-3599.6/UITableView.m:8035
>  2016-10-20 15:43:53.927 ios-App[9137:977735] \*** Terminating app due
>  to uncaught exception 'NSInternalInconsistencyException', reason:
>  'UITableView (; layer = ; contentOffset: {0,
>  -64}; contentSize: {768, 440}>) failed to obtain a cell from its dataSource
> 
> 
> 

When I add debugging points witin cellForRowAtIndexPath they are never reached, the app seems to crash before this point?