C# 在反序列化XML时，rest将myobject返回为null

我正在使用plex status API，无法加载我的对象

以下是我的rest客户端方法：

private static List<RestClient> GetRestClients()
    {
        var clientList = new List<RestClient>();

        foreach (PlexUrl pu in DatabaseHelper.GetPlexUrls())
        {
            var client = new RestClient();
            client.AddHandler("application/xml", new DotNetXmlDeserializer());
            client.BaseUrl = pu.Url;
            clientList.Add(client);
        }

        return clientList;
    }

    private static RestRequest GetRequest()
    {
        var request = new RestRequest(Method.GET);
        request.Resource = "status/sessions";
        request.AddHeader(Constants.PLEX_TOKEN_PREFIX, Cache.Get<string>(Constants.PLEX_USER_TOKEN));

        return request;
    }

    public static List<MediaContainer> GetSessions()
    {
        var sessions = new List<MediaContainer>();

        foreach (var client in GetRestClients())
        {
            var response = client.Execute<MediaContainer>(GetRequest());

            if (!string.IsNullOrEmpty(response.ErrorMessage))
            {
                Logger.LogError(response.ErrorMessage);

                if (Properties.Settings.Default.NotifyErrors)
                    MainWindow.TrayIcon.ShowBalloonTip("Error Connecting to PMS", string.Format("There was an error connecting to {0}.", client.BaseUrl), Hardcodet.Wpf.TaskbarNotification.BalloonIcon.Error);
            }
            else
            {
                sessions.Add(response.Data);
            }
        }

        return sessions;
    }

private静态列表GetRestClients（）
{
var clientList=新列表（）；
foreach（DatabaseHelper.GetPlexUrls（）中的PlexUrl pu）
{
var client=new RestClient（）；
AddHandler（“application/xml”，新的DotNetXmlDeserializer（））；
client.BaseUrl=pu.Url；
clientList.Add（客户端）；
}
返回客户列表；
}
私有静态RestRequest GetRequest（）
{
var请求=新的重新请求（Method.GET）；
request.Resource=“状态/会话”；
request.AddHeader（Constants.PLEX\u TOKEN\u前缀，Cache.Get（Constants.PLEX\u USER\u TOKEN））；
返回请求；
}
公共静态列表GetSessions（）
{
var sessions=新列表（）；
foreach（GetRestClients（）中的var客户端）
{
var response=client.Execute（GetRequest（））；
如果（！string.IsNullOrEmpty（response.ErrorMessage））
{
Logger.LogError（response.ErrorMessage）；
if（Properties.Settings.Default.NotifyErrors）
MainWindow.TrayIcon.showBallootTip（“连接到PMS时出错”、string.Format（“连接到{0}时出错”）、client.BaseUrl）、Hardcodet.Wpf.TaskbarNotification.BalloodIcon.Error）；
}
其他的
{
sessions.Add（response.Data）；
}
}
返回会议；
}

下面是一个XML示例，媒体容器可以包含多个视频

<MediaContainer size="1">
    <Video addedAt="1387660866" art="/library/metadata/696/art/1387660904" contentRating="R" duration="7607858" guid="com.plexapp.agents.themoviedb://87421?lang=en" key="/library/metadata/696" librarySectionID="1" originallyAvailableAt="2013-09-06" rating="6.0999999046325701" ratingKey="696" sessionKey="1" studio="Universal Pictures" summary="Betrayed by his own kind and left for dead on a desolate planet, Riddick fights for survival against alien predators and becomes more powerful and dangerous than ever before. Soon bounty hunters from throughout the galaxy descend on Riddick only to find themselves pawns in his greater scheme for revenge. With his enemies right where he wants them, Riddick unleashes a vicious attack of vengeance before returning to his home planet of Furya to save it from destruction." tagline="Survival Is His Revenge" thumb="/library/metadata/696/thumb/1387660904" title="Riddick" type="movie" updatedAt="1387660904" viewOffset="24922" year="2013">
        <Media aspectRatio="2.35" audioChannels="6" audioCodec="ac3" bitrate="4346" container="mkv" duration="7607858" height="796" id="652" videoCodec="h264" videoFrameRate="24p" videoResolution="1080" width="1916">
            <Part container="mkv" duration="7607858" file="/home/jim/Movies/Riddick (2013).mkv" id="652" key="/library/parts/652/file.mkv" size="4132905434">
                <Stream bitDepth="8" bitrate="3875" cabac="1" chromaSubsampling="4:2:0" codec="h264" codecID="V_MPEG4/ISO/AVC" colorSpace="yuv" duration="7607858" frameRate="23.976" frameRateMode="cfr" hasScalingMatrix="0" height="796" id="3677" index="0" language="English" languageCode="eng" level="40" profile="high" refFrames="5" scanType="progressive" streamType="1" title="" width="1916"/>
                <Stream bitDepth="16" bitrate="384" bitrateMode="cbr" channels="6" codec="ac3" codecID="A_AC3" dialogNorm="-27" duration="7607840" id="3678" index="1" language="English" languageCode="eng" samplingRate="48000" selected="1" streamType="2" title=""/>
            </Part>
        </Media>
        <Genre id="218" tag="Action"/>
        <Genre id="247" tag="Science Fiction"/>
        <Genre id="108" tag="Thriller"/>
        <Writer id="4080" tag="David Twohy"/>
        <Director id="4078" tag="David Twohy"/>
        <Producer id="6820" tag="Ted Field"/>
        <Producer id="4020" tag="Vin Diesel"/>
        <Producer id="6821" tag="Samantha Vincent"/>
        <Country id="71" tag="USA"/>
        <Role id="660" role="Riddick" tag="Vin Diesel" thumb="http://image.tmdb.org/t/p/original/qwyfzMKIhxJ7ols66FgEf7eGdcI.jpg"/>
        <Role id="1054" role="Lord Vaako" tag="Karl Urban" thumb="http://image.tmdb.org/t/p/original/tHYOUO33K7iaDw8nXyqRvDIkVuM.jpg"/>
        <Role id="6811" role="Dahl" tag="Katee Sackhoff" thumb="http://image.tmdb.org/t/p/original/8NcZJxNRSxP2QegcWeX8WDnFlSs.jpg"/>
        <Role id="6812" role="Santana" tag="Jordi Moll&#xE0;" thumb="http://image.tmdb.org/t/p/original/A648UpxxLlgdqziafgSCAVaR0Sc.jpg"/>
        <Role id="6813" role="Moss" tag="Bokeem Woodbine" thumb="http://image.tmdb.org/t/p/original/5jxJLgIsEsKwsHSLVjNvMZzs1Mm.jpg"/>
        <Role id="6814" role="Luna" tag="Nolan Gerard Funk" thumb="http://image.tmdb.org/t/p/original/an3qC0DTKiyzLs76Xw9t9crQfN5.jpg"/>
        <Role id="6815" role="Nunez" tag="Noah Danby" thumb="http://image.tmdb.org/t/p/original/l6soX1Mb6V2QWwxrMjTVEaaaPB2.jpg"/>
        <Role id="6816" role="Rubio" tag="Neil Napier"/>
        <Role id="6817" role="" tag="Keri Hilson" thumb="http://image.tmdb.org/t/p/original/bmrHsGOx35pcYKXjn1aEL7sb5Rd.jpg"/>
        <Role id="6818" role="Diaz" tag="Dave Bautista" thumb="http://image.tmdb.org/t/p/original/gtb1sMCmZjAeF0lSdEWLjFsSvmr.jpg"/>
        <Role id="6819" role="Boss Johns" tag="Matthew Nable"/>
        <Collection id="4093" tag="The Chronicles of Riddick"/>
        <User id="1" thumb="http://www.gravatar.com/avatar/57ddfffd0c28b16997abce76964b5c03?d=404" title="JBurlison@Gmail.com"/>
        <Player machineIdentifier="4f44996d-2fb4-4fcf-9ba4-4b3ab360ed27" platform="Android" state="playing" title="My SM-N900P"/>
        <TranscodeSession key="4f44996d-2fb4-4fcf-9ba4-4b3ab360ed27" throttled="0" progress="0.40000000596046448" speed="0.5" duration="7607000" videoDecision="transcode" audioDecision="transcode" protocol="hls" container="mpegts" videoCodec="h264" audioCodec="aac" audioChannels="2" width="1280" height="532"/>
    </Video>
</MediaContainer>

我的目标是：

我确实使用其他方法成功地将更简单的XML反序列化为对象

我调试了它，它似乎试图用媒体标签而不是视频标签加载视频对象。我相信这是一个错误，但我想问一下，以防我做错了什么