Hello i have been trying out the new xConnect in Sitecore 9. I am now trying to add custom facets to xConnect. To deploy these i need to create a json representation of my model.

I have created a class library with my facets and CollectionModel.

public class CollectionModel
    public static XdbModel Model { get; } = BuildModel();

    private static XdbModel BuildModel()
        XdbModelBuilder modelBuilder = new XdbModelBuilder("DemoModel", new XdbModelVersion(1, 0));
        modelBuilder.DefineFacet<Contact, CartInfo>(CartInfo.DefaultFacetKey);
        modelBuilder.DefineFacet<Interaction, StoreInfo>(StoreInfo.DefaultFacetKey);

        return modelBuilder.BuildModel();

class CartInfo : Facet
    public const string DefaultFacetKey = "CartInfo";
    public List<Product> Products { get; set; }

class Product : Facet
    public const string DefaultFacetKey = "Product";
    public Guid ID { get; set; }

class StoreInfo : Facet
    public const string DefaultFacetKey = "StoreInfo";
    public Guid StoreID { get; set; }
    public string ManagerName { get; set; }
    public List<Product> ActiveOffers { get; set; }

Now i am trying to convert this to json and export it to a file in a console application like so:

var model = Sitecore.XConnect.Serialization.XdbModelWriter.Serialize(CollectionModel.Model);
File.WriteAllText(CollectionModel.Model.FullName + ".json" , model);

When i run this i get the following error:

FileNotFoundException: Could not load file or assembly ‘System.Interactive.Async, Version=3.0.3000.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263’ or one of its dependencies. The system cannot find the file specified.

Does anyone know what i am missing?

  • 1
    System.Interactive.Async is xConnect dependendcy which should be installed when Sitecore is deployed. A quick fix is to install the package from nuget: Install-Package System.Interactive.Async To find the reason why the dependency is missing you could check Sitecore's installation log file if any errors occurred during installation.
    – grg
    Commented Nov 10, 2017 at 11:02
  • I believe i might have a wrong version of something somewhere, after installing the package i still get the error Commented Nov 10, 2017 at 11:03
  • @SitecoreClimber how do you mean, i have not realy touched sitecore itself yet. I have added the same Sitecore.XConnect.dll to my console application and class library Commented Nov 10, 2017 at 11:15
  • @grg i have checked the logs and it has added the System.Interactive.Async without errors Commented Nov 10, 2017 at 11:19
  • can you reference model in this way : XdbModelBuilder modelBuilder = new XdbModelBuilder("DemoModel", new XdbModelVersion(0, 1)); modelBuilder.ReferenceModel(CollectionModel.Model); Commented Nov 10, 2017 at 11:23

1 Answer 1


After playing around a little i found out that you have to add some references to your Console application. These can all be found in the bin folder of your xConnect or Sitecore project:

  • Newtonsoft.Json.dll
  • Sitecore.XConnect.dll
  • Sitecore.XConnect.Search.dll
  • System.Interactive.Async.dll
  • System.Interactive.Async.Providers.dll

This guide describes the creation and deployment of custom xConnect models very well:

  • 3
    You didn't do anything wrong Mark. Because you're creating a connection to xConnect outside of a Sitecore context there are some dependencies that are necessary that aren't present. I point those dependencies out in this post when initializing the XConnectClient. Keep in mind, those posts were written using the Technical Preview of SC9 - I need to update them to reflect changes to the Initial Release because you don't have to call File.WriteAllText(CollectionModel.Model.FullName + ".json" , model); anymore. Commented Nov 10, 2017 at 15:30
  • 2
    Oh, and thank you for referencing my post - glad it was helpful! :) Commented Nov 10, 2017 at 15:30

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