I wanted to install a samba server rpm (build by me ) but i had a samba client there is an incompatibility ,So I wanted to uninstall samba and reinstall this with synaptic i have check that it doesn't work for me when i have lauched synaptic , it said to me that " There are multiple versions of "gpg-pubkey" in your system. This package won't be cleanly updated, unless you leave only one version. To leave multiple versions installed, you may remove that warning by setting the following option in your configuration file: RPM::Allow-Duplicated { "^gpg-pubkey$"; };" There isn't probably any concordance but it happen now and i don't know where is the configuration file of synaptic or apt More of that it seems after that all of package of Nautilus and KDE have been uninstalled and i wanted to go in mines files graphically so i have reinstalled these with "package manager", no problem they have been reinstalled but I don't know why they have been removed ? So after up2date cannot update them (multiples rpm)... Only a reinstallation of fedora can clean that ?