InvalidOperationException al serializar

Question

Obtengo una InvalidOperationException cuando trato de reflejar la propiedad "listing", como dice la excepción interna. Cuando intenta serializar ArmyListing.

Todas las variables son públicas. La lista comprobada se puede serializar. La mayoría de los errores que encontré fueron con personas que usan diccionarios que no pueden.

¿Alguna idea de por qué parece no ser serializable?

//[Serializable] 
public class ArmyListing 
{ 

    [XmlElement("army")] 
    public List<Army> listing { get; set; } 

    public void SerializeToXML(ArmyListing armyListing) 
    { 
     try 
     { 
      XmlSerializer serializer = new XmlSerializer(typeof(ArmyListing)); 
      TextWriter textWriter = new StreamWriter(@"C:\Test\40k.xml"); 
      serializer.Serialize(textWriter, armyListing); 
      textWriter.Close(); 
     } 
     catch (Exception ex) { } 
    } 
} 

//[Serializable] 
public class Army 
{ 
    //public Army(); 

    [XmlAttribute] 
    [XmlArray("unit-category")] 
    public List<UnitCategory> settingconstraints { get; set; } 
    [XmlAttribute("name")] 
    public string armyName { get; set; } 
} 

//[Serializable] 
public class UnitCategory 
{ 
    //public UnitCategory(); 

    [XmlArray("unit-type")] 
    public List<UnitType> setting { get; set; } 
    [XmlAttribute("name")] 
    public string unitCategoryName { get; set; } 
} 

//[Serializable] 
public class UnitType 
{ 
    //public UnitType(); 

    [XmlArray("unit")] 
    public List<Unit> setting { get; set; } 
    [XmlAttribute("name")] 
    public string unitTypeName { get; set; } 
} 

//[Serializable] 
public class Unit 
{ 
    //public Unit(); 

    [XmlAttribute("name")] 
    public string unitName { get; set; } 
    [XmlAttribute("composition")] 
    public string compsition { get; set; } 
    [XmlAttribute("weapon-skill")] 
    public string weaponSkill { get; set; } 
    [XmlAttribute("ballistic-skill")] 
    public string ballisticSkill { get; set; } 
    [XmlAttribute("strength")] 
    public string strength { get; set; } 
    [XmlAttribute("toughness")] 
    public string T { get; set; } 
    [XmlAttribute("wounds")] 
    public string wounds { get; set; } 
    [XmlAttribute("initiative")] 
    public string initiative { get; set; } 
    [XmlAttribute("attacks")] 
    public string attacks { get; set; } 
    [XmlAttribute("leadership")] 
    public string leadership { get; set; } 
    [XmlAttribute("saving-throw")] 
    public string saveThrow { get; set; } 
    [XmlAttribute("armour")] 
    public string armour { get; set; } 
    [XmlAttribute("weapons")] 
    public string weapons { get; set; } 
    [XmlAttribute("special-rules")] 
    public string specialRules { get; set; } 
    [XmlAttribute("dedicated-transport")] 
    public string dedicatedTransport { get; set; } 
    [XmlAttribute("options")] 
    public string options { get; set; } 
} 

//Form 
namespace ThereIsOnlyRules 
{ 
public partial class Form1 : Form 
{ 
    public Form1() 
    { 
     InitializeComponent(); 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
     ArmyListing armyListing = new ArmyListing(); 
     armyListing.SerializeToXML(armyListing); 
    } 
} 
} 

Answer 1

Esta es la parte que no funciona:

[XmlAttribute] 
[XmlArray("unit-category")] 

[XmlArray] & [XmlAttribute] no puede ser definido tanto en la misma propiedad.

Si se mantiene la perforación en .InnerException hasta llegar a la originales problema, el serializador incluso le dice esto:

There was an error reflecting type 'ArmyListing'. 
There was an error reflecting property 'listing'. 
There was an error reflecting type 'Army'. 
There was an error reflecting property 'settingconstraints'. 
XmlAttribute and XmlAnyAttribute cannot be used in conjunction with XmlElement, XmlText, XmlAnyElement, XmlArray, or XmlArrayItem.