FormsAuthentication, Roles does not exist even when Systems.Web are included
<p>So I copied the Registration page that came with ASP.NET to my own page, but for some reason the FormsAuthentication, Roles does not exist in the current context anymore.  I have already included the appropriate files.</p>

<pre><code>    protected void RegisterUser_CreatedUser(object sender, EventArgs e)
    {
        FormsAuthentication.SetAuthCookie(RegisterUser.UserName, false /* createPersistentCookie */);
        Roles.AddUserToRole(RegisterUser.UserName, "User");
    }
</code></pre>

<p>And here are what's included:</p>

<pre><code>            using System;
            using System.Collections.Generic;
            using System.Linq;
            using System.Web;
            using System.Web.UI;
            using System.Web.UI.WebControls;
            using System.Web.Security;
</code></pre>

<p>And here is the ASP.NET section that I copied:</p>

<pre><code>&lt;asp:CreateUserWizard ID="RegisterUser" runat="server" EnableViewState="false" OnCreatedUser="RegisterUser_CreatedUser"&gt;
    &lt;LayoutTemplate&gt;
        &lt;asp:PlaceHolder ID="wizardStepPlaceholder" runat="server"&gt;&lt;/asp:PlaceHolder&gt;
        &lt;asp:PlaceHolder ID="navigationPlaceholder" runat="server"&gt;&lt;/asp:PlaceHolder&gt;
    &lt;/LayoutTemplate&gt;
    &lt;WizardSteps&gt;
        &lt;asp:CreateUserWizardStep ID="RegisterUserWizardStep" runat="server"&gt;
            &lt;ContentTemplate&gt;
                  .....
            &lt;/ContentTemplate&gt;
            &lt;CustomNavigationTemplate&gt;
            &lt;/CustomNavigationTemplate&gt;
        &lt;/asp:CreateUserWizardStep&gt;
    &lt;/WizardSteps&gt;
&lt;/asp:CreateUserWizard&gt;
</code></pre>
