When trying to Navigate to a point I receive a ARCGis runtime error

Question

ArcGIS Runtime Error Occurred. Set a breakpoint on C++ exceptions to see the original callstack and context for this error:  Error Domain=com.esri.arcgis.runtime.error Code=15 "Invalid call."

My code:

public func startRoute(to destination: AGSPoint) {

queue.async { [weak self] in

guard let self = self else {

Logger.log(error: nil)

return

}

// set destination and start locations

self.destinationLocation = destination

self.startLocation = AGSPoint(clLocationCoordinate2D: self.positionManager.current.toCLLocation().coordinate)

self.routeTask = AGSRouteTask(databaseName: "", networkName: "")

self.routeTask.defaultRouteParameters { [weak self] (params: AGSRouteParameters?, error: Error?) in

guard let self = self else {

Logger.log(error: nil)

return

}

if let params = params {

params.returnDirections = true

params.returnStops = true

params.returnRoutes = true

params.outputSpatialReference = .wgs84()

params.setStops(self.makeStops())

self.routeParameters = params

// calculate route

self.routeTask.solveRoute(with: params) { [weak self] result, error in

guard let self = self else { return }

if let result = result {

// success

self.didSolveRoute(with: .success(result))

} else if let error = error {

// failure

self.didSolveRoute(with: .failure(error))

}

} else if let error = error {

guard let del = self.delegateelse { return }

del.updateNavigationView(direction: "Error \((error as NSError).code)", directions: [AGSDirectionManeuver]())

Logger.routing.error("Failed to get route parameters with error \(error.localizedDescription, privacy: .public)")

}

func startEsriNavigation(to point: AGSPoint) {

guard let positionManager = positionManagerelse {

return

}

routeService = RMRouteService(positionManager: positionManager)

routeService.delegate = self

routeService.startRoute(to: point)

mapToolsView.navigationPoint = point

isRouting = true

self.toggleMapTools(toolIndex: 1)

DispatchQueue.main.async { [weak self] in

self?.esriMap.locationDisplay.start()

self?.navigationButton.isHidden = false

}

Ting · Answer

There are too much going on in your code, thus it is hard to tell the real problem. Try to strip down anything unrelated first. I'd suggest starting clean from sth like this

import UIKit
import ArcGIS

class ViewController: UIViewController {
    @IBOutlet var mapView: AGSMapView! {
        didSet {
            let map = AGSMap(basemapStyle: .arcGISLightGray)
            mapView.map = map
        }
    }

let stops: [AGSStop] = {
        let stop1 = AGSStop(point: AGSPoint(x: -117.160386727, y: 32.706608, spatialReference: .wgs84()))
        stop1.name = "San Diego Convention Center"
        let stop2 = AGSStop(point: AGSPoint(x: -117.173034, y: 32.712329, spatialReference: .wgs84()))
        stop2.name = "USS San Diego Memorial"
        let stop3 = AGSStop(point: AGSPoint(x: -117.147230, y: 32.730467, spatialReference: .wgs84()))
        stop3.name = "RH Fleet Aerospace Museum"
        return [stop1, stop2, stop3]
    }()

/// The route task to solve the route between stops, using the online routing service.
    let routeTask = AGSRouteTask(url: URL(string: "https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World")!)

func solveRoute(routeTask: AGSRouteTask) {
        routeTask.defaultRouteParameters { [weak self] (params: AGSRouteParameters?, error: Error?) in
            guard let self = self else { return }
            if let params = params {
                // Explicitly set values for parameters.
                params.returnDirections = true
                params.returnStops = true
                params.returnRoutes = true
                params.outputSpatialReference = .wgs84()
                params.setStops(self.stops)
                self.routeTask.solveRoute(with: params) { (result: AGSRouteResult?, error: Error?) in
                    if let result = result {
                        print(result.routes.first!.directionManeuvers.map(\.directionText).joined(separator: "
"))
                    } else if let error = error {
                        print(error.localizedDescription)
                    }
                }
            } else if let error = error {
                print(error.localizedDescription)
            }
        }
    }

override func viewDidLoad() {
        super.viewDidLoad()
        solveRoute(routeTask: routeTask)
    }
}

The workflow is pretty intuitive:

1. Create a route task. Either from a network database or from the Esri online route service.

2. Create the route parameters. If succeeds, the closure will call back the routing parameters.

3. Solve the route with the parameters. The closure will call back a route result or an error.

Again, it would be great if you can create a minimal repro case based on the snippet above. It will help us to find the issue. 🙂

CarlosHenderson · Answer

Thank you for the documentation.

When I add break points it doesn't hit

if let params.

Im not sure, I'm receiving an error code 24. Object is already owned

Ting · Answer

If you have set a global key on the AGSArcGISRuntimeEnvironment, then you should be good.

didSolveRoute in that sample is just a helper method to handle the AGSRouteResult. From there you can create an AGSRouteTracker with the result, and then have the location display (blue dot) to snap to the route. I would encourage you to download the samples app and run it locally, play with it a bit and set breakpoints at where your error happens to see what is the cause.

There is another guide on the developer website that breaks down each step to configure the route tracker.

Can you let me know which line in your code gives the error? A minimum repro app would be the best. You can also first try with Esri's World Route API in the AGSRouteTask to ensure it is not a data problem.