yum's error message

[Oybek Nuriddinov]

Hi everybody.
There is message in my yum , what does it mean:


Mirrordetection : default
Yum Version : 2.6.0 (/usr/share/yum-cli)
Loading "installonlyn" plugin
Cannot find a valid baseurl for repo: rpmforge
Cannot find a valid baseurl for repo: rpmforge
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/fedora-trans-list/attachments/20080724/d5ec7075/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screenshot-1.png
Type: image/png
Size: 1026722 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/fedora-trans-list/attachments/20080724/d5ec7075/attachment.png>