I’m very new to openSUSE. My experience with other Linux distributions doesn’t seem to apply here. I’m attempting to open my openSuse 10.3 (It was an old CD, and I had no spare CD to install the latest version…) updater, but it won’t cooperate with me:
I used to get this error. The problem was that the little green lizard icon on the toolbar was checking for updates at the same time I tried to update manually through Yast. I see that little yellow triangle with the " ! ", so that tells me that the two are conflicting probably. Try right-clicking on that yellow triangle and closing the updater. Then just open Yast and do the update manually by going to Software → Online Update.
The updater defaults to showing only security and recommended updates. To see all the updates and upgrades listed in yast, right click on the updater and go to Configure Applet, then check the “Show available upgrades when backend provides them”. This setting resets randomly sometimes, so if you know you should be getting updates, check on this setting.