NewtonSoft.Json将对象反序列化为动态时出错

我得到反序列化错误，但仅限于Testserver . Productive服务器上的代码相同 .

发生以下错误：{“解析值时遇到意外字符： . 路径''，第0行，位置0.”}

这是收到的json字符串，我从webservice获得 .

{"success":true,"responses":[{"statusCode":0,"responseMessage":"Der Datensatz wurde erfolgreich unter dem Bookmark BD2797BB4D283AF2 gespeichert"},{"statusCode":0,"responseMessage":"Der Datensatz wurde erfolgreich unter dem Bookmark 05206DB94D283AF2 gespeichert"},{"statusCode":0,"responseMessage":"Der Datensatz wurde erfolgreich unter dem Bookmark 900349C04D283AF2 gespeichert"},{"statusCode":0,"responseMessage":"Der Datensatz wurde erfolgreich unter dem Bookmark ED492DC74D283AF2 gespeichert"}]}

几天前，它也在testserver上运行，但我不知道bug可以在哪里 .

呼叫Web服务：

var errorPositions = new List<SalesConditionErrorMesageDTO>();
        string response = "";
        var settings = JsonSetting.DefaultSerializerSettings; 
        string jsonDataString = JsonConvert.SerializeObject(
            new DataSend()
            {
                Conditions = salesConditions
            }, settings
        );

        HttpWebRequest request = CreatePostRequest(ServerConfiguration.ConditionsWrite, jsonDataString.Length);
        request.Timeout = 7200000; //120 Minutes
        Logger.Log("Save Conditions on:" + Environment.NewLine
            + request.RequestUri + Environment.NewLine
            + jsonDataString, LogSeverity.Information);

        using (Stream webStream = request.GetRequestStream())
        using (StreamWriter requestWriter = new StreamWriter(webStream, Encoding.ASCII))
        {
            requestWriter.Write(jsonDataString);
        }


            using (WebResponse webResponse = request.GetResponse())
            using (Stream webStream = webResponse.GetResponseStream())
            {
                if (webStream != null) 
                {
                    using (StreamReader responseReader = new StreamReader(webStream))
                    {
                        response = responseReader.ReadToEnd();

                        var responseJson = JsonConvert.DeserializeObject<dynamic>(response);

                        if ((bool)responseJson.success)
                        {
                            foreach (dynamic responsePart in responseJson.responses)
                            {
                                if ((int)responsePart.statusCode == 2)
                                {
                                    var errorPosition = new SalesConditionErrorMesageDTO(0, 0, responsePart.responseMessage);
                                }
                            }
                        }


                    }
                }
                else
                {
                    throw new NullReferenceException("WebResponse.GetResponseStream() returned no WebStream object, so this is NULL.");
                }
            }