郑州Net俱乐部 / NBear中IoC的问题？？

接口：

namespace ServiceInterfaces
{
  public interface IPerson:IServiceInterface
    {
        Person[] GetAllPerson();
        Person GetPersonByID(string  PersonID);
    }
}

接口实现：

namespace ServiceImpls
{
    public class PersonService:ServiceInterfaces .IPerson
    {
        public Person[] GetAllPerson()
        {
            return Gateway.Default.FindArray<Person>();
        }
        public Person GetPersonByID(string  PersonID)
        {
            return Gateway.Default.Find<Person>(PersonID);
        }
    }
}

服务工厂：

public abstract class SeviceFactory
{
    private static NBear.IoC.Service.ServiceFactory factory = NBear.IoC.Service.ServiceFactory.Create();
    public static IServiceInterFaceType GetService<IServiceInterFaceType>() where IServiceInterFaceType:IServiceInterface
    {
        return factory.GetService<IServiceInterFaceType>();
    }
}

页面调用：

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        ServiceInterfaces.IPerson ps = SeviceFactory.GetService<ServiceInterfaces.IPerson>();
        this.Chjw.DataSource = ps.GetAllPerson();
        this.Chjw.DataBind();
    }
}

Web.config:

<?xml version="1.0"?>

<configuration>
 <configSections>
  <section name="entityConfig" type="NBear.Common.EntityConfigurationSection, NBear.Common"/>
    <section name="castle" type="Castle.Windsor.Configuration.AppDomain.CastleSectionHandler, Castle.Windsor"/>
 </configSections>
 <entityConfig>
  <includes>
   <add key="Sample Entity Config" value="~/EntityConfig.xml"/>
  </includes>
 </entityConfig>
  <castle>
    <components>
 
      <component id="category service" service="ServiceInterfaces.IPerson, ServiceInterfaces" type="ServiceImpls.PersonService, ServiceImpls"/>
    </components>
  </castle>

  <appSettings/>
 <connectionStrings>
  <add name="DbConn2005" connectionString="Data Source=.;Initial Catalog=Student;Integrated Security=True" providerName="NBear.Data.SqlServer9.SqlDbProvider9"/>
 </connectionStrings>
 <system.web>
 
  <compilation debug="true">
   <assemblies>
    <add assembly="System.Data.OracleClient, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
    <add assembly="System.Transactions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/></assemblies></compilation>

  <authentication mode="Windows"/>
  </system.web>
</configuration>

问题是：

“SeviceFactory”的类型初始值设定项引发异常。