Error: The Type Or Namespace Name 'DataReader' Could Not Be Found

In my DAL:

using System;
using System.Collections;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public DataReader getPersonList2() {
        using (SqlConnection conn = getConnection())
        {
            SqlCommand cmd = new SqlCommand("PERSON_SP_getPersonList", conn);
            cmd.CommandType = CommandType.StoredProcedure;
            conn.Open();
            return cmd.ExecuteReader();
        }
    }

In my BLL:

using System;
using System.Collections;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

DAL d = new DAL();

public DataReader getPersonList2(){
        return d.getPersonList2();
    }

I get the following error in my BLL:

Compiler Error Message: CS0246: The type or namespace name 'DataReader' could not be found (are you missing a using directive or an assembly reference?)


Source Error:








Line 34: }
Line 35:
Line 36: public DataReader getPersonList2(){
Line 37: return d.getPersonList2();
Line 38: }








Source File: c:InetpubwwwrootstudyApp_CodeBLL.cs
   Line: 36


Just wondering if someone could tell me why this is happening? I have the same namespaces that I have in the DAL in my BLL.

Puzzled.