yum install Problem In Fedora 17

HI All ! :)

I have Installed Fedora 17 in CLI mode Only. Then I wanted To install MC and tried this command yum install mc and it appeared some case of errors,

error:

Loaded plugins: langpacks, presto, refresh-packagekit
Error: Cannot retrieve metalink for repository: fedora. Please verify its path and try again

I tried to search solution in this forum but whatever i tried did't help me.

Then I add this list in there > cat /etc/hosts <

list:

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
80.239.156.215 mirrors.fedoraproject.org
209.132.176.120 download.fedoraproject.org
209.132.176.120 mirrors.fedoraproject.org
192.150.18.37 linuxdownload.adobe.com
193.28.235.40 rpm.livna.org
193.28.235.60 download1.rpmfusion.org
213.129.242.84 mirrors.rpmfusion.org

after that, when i tried to instal mc in this command also >yum install mc < then I got the other error massage:

Loaded plugins: langpacks, presto, refresh-packagekit


File contains no section headers.
file: file://///etc/yum.repos.d/fedora.repo, line: 1
'cat /etc/resolv.conf[fedora]\n'


Now What Should I Do? :)