If you are using an ASP.NET page to generate your RSS feed, you may run into this validation error.
Your feed appears to be encoded as “utf-8″, but your server is reporting “US-ASCII”.
Set the ResponseEncoding property to utf-8. Here is an example of its use in the Page directive.
<%@ Page Language="C#" ResponseEncoding="utf-8" %>
Use FeedValidator.org to test your RSS and ATOM feeds.
