about rss read error---no address associated with hostname

I use the rss/2.0 or simple-rss gems to locally access the feed
url-----http://sports.espn.go.com /espn/rss/news.The code is like
following:

Hi,

Refer to this post!

http://sumanthtechsavvy.blogspot.com/2008/08/ror-course-rss-makerparser.html

and you can download the pdf for reference :slight_smile: