简而言之，我正在尝试反序列化来自Bing Maps地理编码REST API的JSON响应，

我创建了我的响应类，现在当我尝试实际反序列化响应时，出现以下错误：

不应使用数据协定名称为“ {1}：{2}”的类型“ {0}”。考虑使用DataContractResolver或将任何静态未知的类型添加到已知类型的列表中-
例如，通过使用KnownTypeAttribute属性或将它们添加到传递给DataContractSerializer的已知类型的列表中。

它试图反序列化这行JSON，但失败：

"__type": "Location:http:\/\/schemas.microsoft.com\/search\/local\/ws\/rest\/v1",

我的回应类看起来像这样

        [DataContract]
        public class GeoResponse
        {
            [DataMember(Name = "statusDescription")]
            public string StatusDescription { get; set; }
            [DataMember(Name = "statusCode")]
            public string StatusCode { get; set; }
            [DataMember(Name = "resourceSets")]
            public ResourceSet[] resourceSets { get; set; }

            [DataContract]
            public class ResourceSet
            {


                [DataMember(Name = "__type", IsRequired=false)]
                public string type { get; set; }

                [DataMember(Name = "estimatedTotal")]
                public string EstimatedTotal { get; set; }

                [DataMember(Name = "resources")]
                public List<Resources> resources { get; set; }

                [DataContract]
                public class Resources
                {
                    [DataMember(Name = "name")]
                    public string Name { get; set; }

                    [DataMember(Name = "point")]
                    public Point point { get; set; }

                    [DataContract]
                    public class Point
                    {
                        [DataMember(Name = "type")]
                        public string Type { get; set; }

                        [DataMember(Name = "coordinates")]
                        public string[] Coordinates { get; set; }
                    }

                    [DataMember(Name = "address")]
                    public Address address { get; set; }

                    [DataContract]
                    public class Address
                    {
                        [DataMember(Name = "addressLine")]
                        public string AddressLine { get; set; }

                        [DataMember(Name = "countryRegion")]
                        public string CountryRegion { get; set; }

                        [DataMember(Name = "formattedAddress")]
                        public string FormattedAddress { get; set; }

                        [DataMember(Name = "locality")]
                        public string Locality { get; set; }

                        [DataMember(Name = "postalCode")]
                        public string PostalCode { get; set; }
                    }

                    [DataMember(Name = "confidence")]
                    public string Confidence { get; set; }

                    [DataMember(Name = "entityType")]
                    public string EntityType { get; set; }
                }

            }
        }

    }

我用来反序列化JSON响应的方法：

private static GeoResponse CallGeoWS(string address)
{
    string url = string.Format(
            "http://dev.virtualearth.net/REST/v1/Locations?q={0}&key={1}",
            HttpUtility.UrlEncode(address), bingkey
            );
    var request = (HttpWebRequest)HttpWebRequest.Create(url);
    request.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip,deflate");
    request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(GeoResponse));            
    var res = (GeoResponse)serializer.ReadObject(request.GetResponse().GetResponseStream());
    return res;
}