Help for refresh repos!

Hi
i want to refresh repos and update system,but when refresh reops show error
zypper ref


:~> sudo zypper ref
[sudo] password for root: 
Repository 'KDE:Extra' is up to date.                                                                                            
Repository 'home:moritzmolch:gencfsm' is up to date.                                                                             
Repository 'home:Herbster0815' is up to date.                                                                                    
Repository 'home:sergeyopensuse:misc' is up to date.                                                                             
Repository 'Emulators' is up to date.                                                                                            
**Download (curl) error for 'http://ftp.gwdg.de/pub/linux/packman/suse/openSUSE_Tumbleweed/media.1/media':
Error code: Curl error 52
Error message: Empty reply from server
**
Abort, retry, ignore? [a/r/i/...? shows all options] (a): i
Do you want to disable the repository Packman Repository permanently? [yes/no] (no): n
**Skipping repository 'Packman Repository' because of the above error.
Download (curl) error for 'http://opensuse-guide.org/repo/openSUSE_Tumbleweed/media.1/media':
Error code: Curl error 52
Error message: Empty reply from server**

Abort, retry, ignore? [a/r/i/...? shows all options] (a): i
Do you want to disable the repository libdvdcss repository permanently? [yes/no] (no): n
Skipping repository 'libdvdcss repository' because of the above error.
R**etrieving repository 'packman' metadata -------------------------------------------------------------------------------------\]
Download (curl) error for 'http://ftp.gwdg.de/pub/linux/misc/packman/suse/openSUSE_Tumbleweed/repodata/repomd.xml':
Error code: Curl error 52
Error message: Empty reply from server
**
Abort, retry, ignore? [a/r/i/...? shows all options] (a): i
**Retrieving repository 'packman' metadata .................................................................................[error]
Repository 'packman' is invalid.
[pacman|http://ftp.gwdg.de/pub/linux/misc/packman/suse/openSUSE_Tumbleweed/] Valid metadata not found at specified URL
Please check if the URIs defined for this repository are pointing to a valid repository.
Skipping repository 'packman' because of the above error.**
Repository 'openSUSE-Tumbleweed-Non-Oss' is up to date.                                                                          
**Retrieving repository 'openSUSE-Tumbleweed-Oss' metadata ---------------------------------------------------------------------/]
Download (curl) error for 'http://download.opensuse.org/tumbleweed/repo/oss/suse/setup/descr/packages.DU.gz':
Error code: HTTP response: 502
Error message: The requested URL returned error: 502 Bad Gateway
**
Abort, retry, ignore? [a/r/i/...? shows all options] (a): i
Retrieving repository 'openSUSE-Tumbleweed-Oss' metadata .................................................................[error]
**Repository 'openSUSE-Tumbleweed-Oss' is invalid.
[repo-oss|http://download.opensuse.org/tumbleweed/repo/oss/] Valid metadata not found at specified URL
Please check if the URIs defined for this repository are pointing to a valid repository.
Skipping repository 'openSUSE-Tumbleweed-Oss' because of the above error.**
Repository 'openSUSE-Tumbleweed-Update' is up to date.                                                                           
**Some of the repositories have not been refreshed because of an error.**

I can’t refresh repos pacman,oss,
how to fix errors?
Thanks

Please post your repo list:

zypper lr -d

Thank You
After show list repo(zypper lr -d), i find double repo pacman and remove that, now working
The problem was solved


~> sudo zypper ref
[sudo] password for root: 
Repository 'KDE:Extra' is up to date.                                                                                            
Repository 'home:moritzmolch:gencfsm' is up to date.                                                                             
Repository 'home:Herbster0815' is up to date.                                                                                    
Repository 'home:sergeyopensuse:misc' is up to date.                                                                             
Repository 'Emulators' is up to date.                                                                                            
Retrieving repository 'libdvdcss repository' metadata .....................................................................[done]
Building repository 'libdvdcss repository' cache ..........................................................................[done]
Retrieving repository 'packman' metadata ..................................................................................[done]
Building repository 'packman' cache .......................................................................................[done]
Repository 'openSUSE-Tumbleweed-Non-Oss' is up to date.                                                                          
Retrieving repository 'openSUSE-Tumbleweed-Oss' metadata .................................................[done]
Building repository 'openSUSE-Tumbleweed-Oss' cache .........................................................[done]
Repository 'openSUSE-Tumbleweed-Update' is up to date.                                                                           
All repositories have been refreshed.


Well, a duplicate repo entry should not cause such a problem.

Maybe the URL was wrong, maybe there were some temporary server/mirror problems (as your output also contains an error about the libdvdcss repo and even the standard ones), or maybe something related to your Internet connection.

Anyway, seems to work now, so …