why I cannot install any new plasmoids on opensuse11,KDE4.12

Once I start to install a new plasmoid,the system notify me kde4.12 will be downgrade to kde4.04

If you look in Yast software and search for plasmoids the are 2 and only one works with 4.12
kdebase4-workspace-plasmoids (will not work)
kde4-plasma-addons (works)