Can't retrieve Azure Spatial Anchor (unity3D, Hololens 2)

Question

About one year ago, I developed an application for Hololens 2 using Azure Spatial Anchors. This application can create, retrieve and delete anchors. It worked well. Today, I tried to use the application again. The anchor creation works but I can not retrieve my anchor.

I use AzureSpatialAnchor SDK 2.1.1. Here is the code for retrieving my anchors :

AnchorLocateCriteria criteria = new AnchorLocateCriteria();
criteria.Identifiers = anchorsToFind.ToArray();
azureWatcher = azureSession.CreateWatcher(criteria);

Of course, I defined a method for callback when anchor has been retrieved :

azureSession = new CloudSpatialAnchorSession();
...
azureSession.AnchorLocated += OnAzureAnchorLocated;

    public void OnAzureAnchorLocated(object sender, AnchorLocatedEventArgs args) {
        AddToActionQueue(() => {
            DebugConsole.LogMessage("OnAzureAnchorLocated");
            switch (args.Status) {
                case LocateAnchorStatus.Located:
                case LocateAnchorStatus.AlreadyTracked:
                    PlaceAnchor(args.Anchor);
                    break;
                case LocateAnchorStatus.NotLocatedAnchorDoesNotExist:
                    // The anchor was deleted or never existed in the first place
                    // Drop it, or show UI to ask user to anchor the content anew
                    DebugConsole.LogMessage("Anchor does not exist");
                    break;
                case LocateAnchorStatus.NotLocated:
                    // The anchor hasn't been found given the location data
                    // The user might in the wrong location, or maybe more data will help
                    // Show UI to tell user to keep looking around
                    DebugConsole.LogMessage("Anchor not located");
                    break;
            }
        });
    }

I have no error and no message (located, alreadyTracked, doesNotExists, NotLocated)

Taking a look in the spatial anchor supervision in Azure portal, I can see one creation request but.. no queries request !

Does someone know how I could solve my problem ?
Thanks.

Olivier.

Answer 1

Hello @Olivier Martineau I hope the below info helps with your initial query.

The minimum supported version is ASA SDK 2.7.0. Please make sure to update to the latest SDK (ASA SDK 2.10.2).

Please have a look at the : ASA SDK 2.7.0 is the Minimum Version

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