C# 尚未定义配置文件组“ProfileGroupPersonal”

我需要在MVC中实现成员身份验证。我还使用配置文件组手动创建了ProfileCommon。现在，我在创建用户时遇到以下错误：

错误：尚未定义配置文件组“ProfileGroupPersonal”

这是我的ProfileCommon.cs代码

public class ProfileGroupPersonal : System.Web.Profile.ProfileGroupBase
{
    public virtual string UserName
    {
        get
        {
            return ((string)(this.GetPropertyValue("UserName")));
        }
        set
        {
            this.SetPropertyValue("UserName", value);
        }
     }
}
public class ProfileCommon : System.Web.Profile.ProfileBase
{
    public virtual ProfileGroupPersonal Personal
    {
        get
        {
            return ((ProfileGroupPersonal)(this.GetProfileGroup("Personal")));                
        }
    }

    public virtual ProfileCommon GetProfile(string username)
    {
          return Create(username)  as ProfileCommon;
    }
 }

   ProfileCommon p = new ProfileCommon();
   ProfileCommon profile = p.GetProfile(userName);                
   profile.Personal.UserName = userName;

My web.config代码：

  <profile inherits="FormAuthentication.Models.ProfileCommon" >      
   <providers>
     <clear />        
     <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="Test"/>
  </providers>      
  </profile>