hi
i m following the book "Beginning asp.net 2.0 with C#" and currently in process of making wrox united.
i am facing a error while defining roles.
in website administration tool on enabling role in security tab, then clicking on create or manage roles i m facinf this problem.
the error i m receiving is:

Could not find stored procedure 'dbo.aspnet_Roles_GetAllRoles'. at System.Web.Administration.WebAdminPage.CallWebAdmi nHelperMethod(Boolean isMembership, String methodName, Object[] parameters, Type[] paramTypes) at ASP.security_roles_manageallroles_aspx.BindGrid() at ASP.security_roles_manageallroles_aspx.Page_Load() at System.Web.Util.CalliHelper.ArglessFunctionCaller( IntPtr fp, Object o) at System.Web.Util.CalliEventHandlerDelegateProxy.Cal lback(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

please help me out of this......
thanx