将 XML 文档反序列化为 C# 对象集合

我需要一些帮助来指出我在这里做错了什么。我已经搜索了SO并尝试了不同的方法来加载此XML，但我只是看不到导致此错误的原因：

System.InvalidOperationException：XML 文档 （1， 1） 中存在错误。 ---> System.Xml.XmlException：根级别的数据无效。第 1 行，位置 1。

<?xml version="1.0" encoding="utf-8"?>
<folderlist xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<foldersetting>
  <id>1</id>
  <source>
    <path>''USApps2'AVL'Attachments</path>
    <datelastread>2016-01-25T10:51:12.6030162-08:00</datelastread>
    <filter>
      <owner>US'</owner>
      <filetype>*</filetype>
    </filter>
  </source>
  <destination>
    <path>E:'UserData'AVL</path>
    <overwrite>false</overwrite>
  </destination>
</foldersetting>
<foldersetting>
  <id>2</id>
  <source>
    <path>''TWAVLSVR'AVL'Attachments</path>
    <datelastread>2016-01-22T10:51:12.6030162-08:00</datelastread>
    <filter>
      <owner>TW'</owner>
      <filetype>PDF</filetype>
    </filter>
  </source>
  <destination>
    <path>E:'UserData'AVL</path>
    <overwrite>false</overwrite>
  </destination>
</foldersetting>
<foldersetting>
  <id>3</id>
  <source>
    <path>E:'UserData'AVL</path>
    <datelastread>2016-01-22T10:51:12.6030162-08:00</datelastread>
    <filter>
      <owner>US'</owner>
      <filetype>*</filetype>
    </filter>
  </source>
  <destination>
    <path>E:'UserData'AVL'Web</path>
    <overwrite>false</overwrite>
  </destination>
</foldersetting>
</folderlist>

这是我的类定义：

[Serializable()]
public class Filter
{
    [XmlElement("owner")]
    public string Owner {get; set;}
    [XmlElement("filetype")]
    public string FileType { get; set; }
}
[Serializable()]
public class SourceFolder
{
    [XmlElement("path")]
    public string Path { get; set; }
    [XmlElement("datelastread")]
    public DateTime DateLastRead { get; set; }
    [XmlElement("filter")]
    public Filter FilterTypes { get; set; }
}
[Serializable()]
public class DestinationFolder
{
    [XmlElement("path")]
    public string Path { get; set; }
    [XmlElement("overwrite")]
    public bool OverWrite { get; set; }
}
[Serializable()]
public class FolderSetting
{
    [XmlElement("id")]
    public int ID { get; set; }
    [XmlElement("source")]
    public SourceFolder Source { get; set; }
    [XmlElement("destination")]
    public DestinationFolder Destination { get; set; }
}
[Serializable()]
[XmlRoot("folderlist")]
public class FolderList
{
    public FolderList()
    {
        FolderSettings = new List<FolderSetting>();
    }
    [XmlElement("foldersetting")]
    public List<FolderSetting> FolderSettings;
}

在这里，我反序列化 XML：

XmlSerializer serializer = new XmlSerializer(typeof(FolderList));
using (StringReader reader = new StringReader("C:''Folders.xml"))
{
    FolderList folders = (FolderList)(serializer.Deserialize(reader));
}

我

遵循了这里的一个建议来填充我拥有的类并对其进行序列化，以确保我为我的类获得正确的格式，但它仍然没有帮助。希望有人能看到我在这里错过了什么。

using (StreamReader reader = new StreamReader("D:''Folders.xml"))
{
  FolderList folders = (FolderList)(serializer.Deserialize(reader));
}