XML을 List <Object>로 deserialize하는 방법

반환 값이 XML 인 WCF를 만들려고합니다. xml 파일을 객체로 deserialize하려고 할 때 오류가 있습니다.

이것은 파일을 deserialize하는 내 코드

내 컨트롤러

//serialize request to wcf//    
var requestXML = Lib.Serializer.ObjectSerializer.Serialize(request);
//get response from wcf//
var XMLResult = Lib.Net.Http.Post(requestXML,"http://localhost:53721/RoomRate.svc/RoomRates", 60);
//deserialize xml file to object//
var response = Lib.Serializer.ObjectSerializer.Deserialize<List<RoomRatesResponses>>(XMLResult);

XML deserialize에 대한 내 클래스

public static T Deserialize<T>(string xml)
{
    T result;
    XmlSerializer ser = new XmlSerializer(typeof(T));
    using (TextReader tr = new StringReader(xml))
    {
        result = (T)ser.Deserialize(tr);
    }
    return result;
}

내 개체 모델

public class RoomRatesResponses
{
    public List<RoomRateResponse> ListRoomRateResponse { get; set; }

    public RoomRatesResponses()
    {
        ListRoomRateResponse = new List<RoomRateResponse>();
    }
}

public class RoomRateResponse
{
    public string ErrorMessage { get; set; }
    public bool OperationSuccess { get; set; }
    public int Allotment { get; set; }
    public bool Breakfast { get; set; }
    public DateTime CheckInDate { get; set; }
    public bool CloseSelling { get; set; }
    public double CommissionPct { get; set; }
    public string CurrCode { get; set; }
    public bool FreeSell { get; set; }
    public int RoomRateId { get; set; }
    public string RoomType { get; set; }
    public double SingleRate { get; set; }
    public double TripleRate { get; set; }
    public double TwinDoubleRate { get; set; }
}

내 XML을 deserialize하면 다음과 같은 오류가 발생합니다.

<ArrayOfRoomRateResult xmlns=''>예상되지 않았습니다. 설명 : 현재 웹 요청을 실행하는 동안 처리되지 않은 예외가 발생했습니다. 오류 및 코드에서 오류가 발생한 위치에 대한 자세한 내용은 스택 추적을 검토하십시오.

예외 세부 정보 : System.InvalidOperationException: <ArrayOfRoomRateResult xmlns=''>예상하지 못했습니다.

내 xml 파일을 어떻게 deseralize 할 수 있습니까 ??

    <?xml version="1.0" encoding="utf-8"?>
<ArrayOfRoomRateResult xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                       xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <RoomRateResult>
    <OperationSuccess>true</OperationSuccess>
    <ErrorMessage/>
    <RoomRateId>1170</RoomRateId>
    <RoomType>superior</RoomType>
    <RoomTypeID>150</RoomTypeID>
    <Breakfast>true</Breakfast>
    <CheckInDate>2014-01-01T00:00:00</CheckInDate>
    <CurrCode>IDR</CurrCode>
    <SingleRate>450000.0000</SingleRate>
    <TwinDoubleRate>450000.0000</TwinDoubleRate>
    <TripleRate>750000.0000</TripleRate>
    <CommissionPct>15.00</CommissionPct>
    <Allotment>25</Allotment>
    <FreeSell>true</FreeSell>
    <CloseSelling>false</CloseSelling>
    <CancellationPolicy/>
  </RoomRateResult>
  <RoomRateResult>
    <OperationSuccess>true</OperationSuccess>
    <ErrorMessage/>
    <RoomRateId>1171</RoomRateId>
    <RoomType>superior</RoomType>
    <RoomTypeID>150</RoomTypeID>
    <Breakfast>true</Breakfast>
    <CheckInDate>2014-01-02T00:00:00</CheckInDate>
    <CurrCode>IDR</CurrCode>
    <SingleRate>450000.0000</SingleRate>
    <TwinDoubleRate>450000.0000</TwinDoubleRate>
    <TripleRate>750000.0000</TripleRate>
    <CommissionPct>15.00</CommissionPct>
    <Allotment>22</Allotment>
    <FreeSell>false</FreeSell>
    <CloseSelling>false</CloseSelling>
    <CancellationPolicy/>
  </RoomRateResult>
  <RoomRateResult>
    <OperationSuccess>true</OperationSuccess>
    <ErrorMessage/>
    <RoomRateId>1177</RoomRateId>
    <RoomType>deluxe</RoomType>
    <RoomTypeID>151</RoomTypeID>
    <Breakfast>false</Breakfast>
    <CheckInDate>2014-01-01T00:00:00</CheckInDate>
    <CurrCode>IDR</CurrCode>
    <SingleRate>600000.0000</SingleRate>
    <TwinDoubleRate>600000.0000</TwinDoubleRate>
    <TripleRate>850000.0000</TripleRate>
    <CommissionPct>25.00</CommissionPct>
    <Allotment>11</Allotment>
    <FreeSell>false</FreeSell>
    <CloseSelling>false</CloseSelling>
    <CancellationPolicy>
      <Cancellation>
        <CancellationPolicyID>34</CancellationPolicyID>
        <ValidFrom>2014-01-01T00:00:00</ValidFrom>
        <ValidTo>2014-01-31T00:00:00</ValidTo>
        <ValidDays>YYYYYYY</ValidDays>
        <ChargeTypeId>1</ChargeTypeId>
        <CancellationCharge>1.0000</CancellationCharge>
        <DayBeforeCheckIn>7</DayBeforeCheckIn>
      </Cancellation>
    </CancellationPolicy>
  </RoomRateResult>
  <RoomRateResult>
    <OperationSuccess>true</OperationSuccess>
    <ErrorMessage/>
    <RoomRateId>1178</RoomRateId>
    <RoomType>deluxe</RoomType>
    <RoomTypeID>151</RoomTypeID>
    <Breakfast>false</Breakfast>
    <CheckInDate>2014-01-02T00:00:00</CheckInDate>
    <CurrCode>IDR</CurrCode>
    <SingleRate>500000.0000</SingleRate>
    <TwinDoubleRate>500000.0000</TwinDoubleRate>
    <TripleRate>750000.0000</TripleRate>
    <CommissionPct>25.00</CommissionPct>
    <Allotment>22</Allotment>
    <FreeSell>false</FreeSell>
    <CloseSelling>false</CloseSelling>
    <CancellationPolicy>
      <Cancellation>
        <CancellationPolicyID>34</CancellationPolicyID>
        <ValidFrom>2014-01-01T00:00:00</ValidFrom>
        <ValidTo>2014-01-31T00:00:00</ValidTo>
        <ValidDays>YYYYYYY</ValidDays>
        <ChargeTypeId>1</ChargeTypeId>
        <CancellationCharge>1.0000</CancellationCharge>
        <DayBeforeCheckIn>7</DayBeforeCheckIn>
      </Cancellation>
    </CancellationPolicy>
  </RoomRateResult>
</ArrayOfRoomRateResult>