[root@xps romi]# pacman -S gnome --ignore gnome-themes
:: gnome-themes is in IgnorePkg/IgnoreGroup. Install anyway? [Y/n] y
:: There are 29 members in group gnome:
:: Repository gnome-unstable
   1) at-spi2-atk  2) at-spi2-core  3) epiphany  4) gdm  5) gnome-applets
   6) gnome-backgrounds  7) gnome-control-center  8) gnome-desktop
   9) gnome-icon-theme  10) gnome-icon-theme-extras
   11) gnome-icon-theme-symbolic  12) gnome-keyring  13) gnome-media
   14) gnome-panel  15) gnome-screensaver  16) gnome-session
   17) gnome-settings-daemon  18) gnome-shell  19) gnome-terminal
   20) gnome-themes-standard  21) gnome-user-docs  22) mutter  23) nautilus
   24) notification-daemon  25) yelp
:: Repository extra
   26) gnome2-user-docs  27) gnome-mime-data  28) gnome-themes  29) metacity

Enter a selection (default=all):
warning: at-spi2-core-1.91.93-1 is up to date -- reinstalling
warning: epiphany-2.91.92-1 is up to date -- reinstalling
warning: gdm-2.91.94-1 is up to date -- reinstalling
warning: gnome-applets-2.91.4-2 is up to date -- reinstalling
warning: gnome-backgrounds-2.91.92-1 is up to date -- reinstalling
warning: gnome-control-center-2.91.93-1 is up to date -- reinstalling
warning: gnome-desktop-2.91.93-1 is up to date -- reinstalling
warning: gnome-icon-theme-2.91.93-1 is up to date -- reinstalling
warning: gnome-icon-theme-symbolic-2.91.93-1 is up to date -- reinstalling
warning: gnome-keyring-2.91.93-1 is up to date -- reinstalling
warning: gnome-media-2.91.2-2 is up to date -- reinstalling
warning: gnome-panel-2.91.93-2 is up to date -- reinstalling
warning: gnome-screensaver-2.91.92-1 is up to date -- reinstalling
warning: gnome-session-2.91.94-1 is up to date -- reinstalling
warning: gnome-settings-daemon-2.91.93-1 is up to date -- reinstalling
warning: gnome-shell-2.91.93-1 is up to date -- reinstalling
warning: gnome-terminal-2.33.90-1 is up to date -- reinstalling
warning: gnome-themes-standard-2.91.93-1 is up to date -- reinstalling
warning: gnome-user-docs-2.91.92-1 is up to date -- reinstalling
warning: mutter-2.91.93-1 is up to date -- reinstalling
warning: nautilus-2.91.94-1 is up to date -- reinstalling
warning: notification-daemon-0.7.1-1 is up to date -- reinstalling
warning: yelp-2.91.92-1 is up to date -- reinstalling
warning: gnome-mime-data-2.18.0-4 is up to date -- reinstalling
warning: metacity-2.30.3-2 is up to date -- reinstalling
resolving dependencies...
looking for inter-conflicts...
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: gnome-themes-standard and gnome-themes are in conflict
[root@xps romi]#