Folks While trying to add a second desktop to my Centos7 installation (I had GNOME3, wanted to add KDE as an alternate), the install failed: >yum groupinstall "KDE Plasma Workspaces" <snip> >--> Finished Dependency Resolution >Error: Package: systemd-python-208-20.el7.x86_64 (base) > Requires: systemd = 208-20.el7 > Installed: systemd-208-20.el7_1.5.x86_64 (@updates) > systemd = 208-20.el7_1.5 > Available: systemd-208-20.el7.x86_64 (base) > systemd = 208-20.el7 >Error: Package: 32:bind-libs-9.9.4-18.el7.x86_64 (base) > Requires: bind-license = 32:9.9.4-18.el7 > Installed: 32:bind-license-9.9.4-18.el7_1.1.noarch (@updates) > bind-license = 32:9.9.4-18.el7_1.1 > Available: 32:bind-license-9.9.4-18.el7.noarch (base) > bind-license = 32:9.9.4-18.el7 >Error: Package: libreport-2.1.11-21.el7.centos.0.4.x86_64 (base) > Requires: libreport-filesystem = 2.1.11-21.el7.centos.0.4 > Installed: > libreport-filesystem-2.1.11-23.el7.centos.0.1.x86_64 (@updates) > libreport-filesystem = 2.1.11-23.el7.centos.0.1 > Available: > libreport-filesystem-2.1.11-21.el7.centos.0.4.x86_64 (base) > libreport-filesystem = 2.1.11-21.el7.centos.0.4 >Error: Package: 1:cups-client-1.6.3-17.el7.x86_64 (base) > Requires: cups-libs(x86-64) = 1:1.6.3-17.el7 > Installed: 1:cups-libs-1.6.3-17.el7_1.1.x86_64 (@updates) > cups-libs(x86-64) = 1:1.6.3-17.el7_1.1 > Available: 1:cups-libs-1.6.3-17.el7.x86_64 (base) > cups-libs(x86-64) = 1:1.6.3-17.el7 >Error: Package: 1:cups-1.6.3-17.el7.x86_64 (base) > Requires: cups-libs(x86-64) = 1:1.6.3-17.el7 > Installed: 1:cups-libs-1.6.3-17.el7_1.1.x86_64 (@updates) > cups-libs(x86-64) = 1:1.6.3-17.el7_1.1 > Available: 1:cups-libs-1.6.3-17.el7.x86_64 (base) > cups-libs(x86-64) = 1:1.6.3-17.el7 > You could try using --skip-broken to work around the problem > You could try running: rpm -Va --nofiles --nodigest Trying the --skip-broken option gave a large set of protected multilib version errors, so it didn't work either. The following is the repo list: >[root at xxxxx ~]# yum repolist >Loaded plugins: fastestmirror, langpacks, priorities >Loading mirror speeds from cached hostfile > * base: mirror.pac-12.org > * centosplus: mirrors.unifiedlayer.com > * epel: mirror.sfo12.us.leaseweb.net > * extras: mirror.pac-12.org > * updates: mirrors.xmission.com >1452 packages excluded due to repository priority protections >repo id repo >name status >base/7/x86_64 CentOS-7 - >Base 8,652 >centosplus/7/x86_64 CentOS-7 - >Plus 40+13 >cr/7/x86_64 CentOS-7 - >cr 0 >*epel/x86_64 Extra Packages for >Enterprise Linux 7 - x86_64 8,411+66 >extras/7/x86_64 CentOS-7 - >Extras 128+53 >updates/7/x86_64 CentOS-7 - >Updates 2+1,320 >repolist: 17,233 >[root at goat ~]# I use priorities, as follows: 1: base 2: centosplus 3: updates 4: extras 5: cr 6: contrib 7: epel Can anyone explain this? or let me know how to get around it? Rebuilding the server from scratch is definitely possible since this is a test environment only. Thanks David