I'm not sure what I'm doing wrong. This is my first time working with MojoPortal and I am trying to create a custom feature. I have gotten all the way to adding the feature to the site, but when I try to view the page I get this:

Server Error in '/' Application.
Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: 'sb.PublicCards.Web.UI.PublicCardsModule' is not allowed here because it does not extend class 'System.Web.UI.UserControl'.

Source Error:

Line 1: <%@ Control Language="vb" AutoEventWireup="false" CodeBehind="PublicCards.ascx.vb" Inherits="sb.PublicCards.Web.UI.PublicCardsModule" %>
Line 2:
Line 3: <portal:mojoPanel ID="mp1" runat="server" ArtisteerCssClass="art-Post" RenderArtisteerBlockContentDivs="true">

What should I do?

Thanks!