Error creating an offline geodatabase in Quartz

PaulLivingstone

I am getting an error using the sample code (https://developers.arcgis.com/net/latest/wpf/guide/create-an-offline-map.htm) for creating an offline replica geodatabase:

"Job failed. Job error 22 User defined failure. Error while handling generate geodatabase job status. Job error 400 Failed to create replica. Multiple layers are referencing a dataset, which is not supported."

Even if I point the endpoint to a local ArcGIS Server feature service with only 1 layer in it I get the same error. If I create it with the same arguments within a web browser then it creates the replica on the server without issue.

Does anyone know a solution to this?

Thanks

Paul

ThadTilton

Hey Paul,

I tried this today and experienced the same issue you described. I took a closer look at the underlying REST request and the culprit was the value of the layers parameter, which looked like this: "[0,1,2,0,1]" (notice that layers 0 and 1 are in there twice). The following code adds to the GenerateGeodatabaseParams.LayerOptions, but those layers (and one more) are already defined by default:

generateGdbParams.LayerOptions.Add(new GenerateLayerOption(marineLayerId, dolphinsOnlyWhereClause));
generateGdbParams.LayerOptions.Add(new GenerateLayerOption(birdsLayerId));

So ... you just need to clear the LayerOptions before adding to them:

generateGdbParams.LayerOptions.Clear(); //<--Do this before adding to the layer options

generateGdbParams.LayerOptions.Add(x);

generateGdbParams.LayerOptions.Add(y);

I also found another glitch "downstream" from this that you might hit. When creating the layer from one of the output GDB tables, you need to make sure you load the table first, otherwise you'll get an exception when trying to read properties (such as the Name of the table):

// get the first table
var gdbFeatureTable = gdb.GeodatabaseFeatureTable(0);
await gdbFeatureTable.LoadAsync(); // <--Load it!
// create a FeatureLayer to display the table
var localGdbLayer = new FeatureLayer(gdbFeatureTable);
// name the layer with the table name
localGdbLayer.Name = gdbFeatureTable.TableName; //<--exception here if it's not loaded

Apologies for the frustration, we certainly should have caught this before putting it in the doc. Thanks for pointing it out ... at least we can save the next person some stress! Please let us know if you hit anything else.

Thad