Unable to convert XML to C# Object List

I'm trying to convert the XML data to an object list, but it throws an error.

XML

<?xml version="1.0" encoding="utf-8" ?>
<Servers>
  <Server>
    <ServerName>STAGING</ServerName>
    <ServerIP>XXX.XXX.XX.X</ServerIP>        
  </Server>
</Servers>

C#

public class ServerDetails
{
    public string ServerName { get; set; }
    public string ServerIP { get; set; }        
}

private void GetXMLData()
{
  XmlSerializer serializer = new XmlSerializer(typeof(List<ServerDetails>));

  using (FileStream stream = File.OpenRead("D:\Resource.xml"))
  {
    List<ServerDetails> list = (List<ServerDetails>)serializer.Deserialize(stream);
    //Exception here
  }
}

ERROR

Ier Exception : <Servers xmnls=''> was not expected.   
There is an error in XML document (2,2)