Trouble with installing gcc-c++

Hi,
I am trying to install gcc-c++ in my system ( SUSE 11.1)
I did
yast2 --install gcc-c++

but I end up with error message

Download failed:
File ‘/repodata/repomd.xml’ not found on medium
http://download.opensuse.org/repositories/Moblin:/UI/openSUSE_11.1/

can any one Help me

Thanks
Shariq

Try the OpenSUSE Build Service, aka “1-Click Install,” at:

Software.openSUSE.org

Search for gcc for 11.1, and select “1-Click Install” next to the package appropriate for your system