hotchoc - There is no object type implementing interface `Node`

Bump into this weird hotchoc error while trying to run 'dotnet run -- schema export --output schema.graphql' to generate my schema. 

This is what my hotchoc types looks like. It turn out that I have a static method which prevented the auto code generations to work properly. 

using System.Collections.Generic;

using HotChocolate;

using HotChocolate.Types;

using HotChocolate.Types.Relay;

namespace Reviews.Types

{

    [QueryType]

    public class Query

    {      

        [NodeResolver]

        public static Review GetReview(

        [Service] ReviewRepository repository,

        int upc) =>

        repository.GetReview(upc);      

    }

}

To resolve this, simply remove the static method in my Query.