$ sudo aptitude upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Reading extended state information      
Initializing package states... Done
Building tag database... Done      
No packages will be installed, upgraded, or removed.
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 0B will be used.
Setting up compiz-plugins (0.3.6-1ubuntu9) ...
/var/lib/dpkg/info/compiz-plugins.postinst: 11: gconf-schemas: not found
dpkg: error processing compiz-plugins (--configure):
 subprocess post-installation script returned error exit status 127
Setting up compiz-gtk (0.3.6-1ubuntu9) ...
/var/lib/dpkg/info/compiz-gtk.postinst: 6: gconf-schemas: not found
dpkg: error processing compiz-gtk (--configure):
 subprocess post-installation script returned error exit status 127
dpkg: dependency problems prevent configuration of compiz-gnome:
 compiz-gnome depends on compiz-gtk (= 1:0.3.6-1ubuntu9); however:
  Package compiz-gtk is not configured yet.
dpkg: error processing compiz-gnome (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of compiz:
 compiz depends on compiz-plugins; however:
  Package compiz-plugins is not configured yet.
 compiz depends on compiz-gtk; however:
  Package compiz-gtk is not configured yet.
 compiz depends on compiz-gnome; however:
  Package compiz-gnome is not configured yet.
dpkg: error processing compiz (--configure):
 dependency problems - leaving unconfigured
Setting up evolution (2.10.0-0ubuntu2) ...
/var/lib/dpkg/info/evolution.postinst: 11: gconf-schemas: not found
dpkg: error processing evolution (--configure):
 subprocess post-installation script returned error exit status 127
dpkg: dependency problems prevent configuration of evolution-plugins:
 evolution-plugins depends on evolution (>= 2.10.0); however:
  Package evolution is not configured yet.
dpkg: error processing evolution-plugins (--configure):
 dependency problems - leaving unconfigured
Setting up gnome-games-data (2.18.0.1-0ubuntu1) ...
/var/lib/dpkg/info/gnome-games-data.postinst: 11: gconf-schemas: not found
dpkg: error processing gnome-games-data (--configure):
 subprocess post-installation script returned error exit status 127
dpkg: dependency problems prevent configuration of gnome-games:
 gnome-games depends on gnome-games-data (= 1:2.18.0.1-0ubuntu1); however:
  Package gnome-games-data is not configured yet.
dpkg: error processing gnome-games (--configure):
 dependency problems - leaving unconfigured
Setting up gnome-session (2.18.0-0ubuntu2) ...
/var/lib/dpkg/info/gnome-session.postinst: 17: gconf-schemas: not found
dpkg: error processing gnome-session (--configure):
 subprocess post-installation script returned error exit status 127
Setting up gthumb (2.10.0-0ubuntu1) ...
/var/lib/dpkg/info/gthumb.postinst: 42: gconf-schemas: not found
dpkg: error processing gthumb (--configure):
 subprocess post-installation script returned error exit status 127
Setting up gwget (0.98.1-2ubuntu1) ...
/var/lib/dpkg/info/gwget.postinst: 11: gconf-schemas: not found
dpkg: error processing gwget (--configure):
 subprocess post-installation script returned error exit status 127
Setting up libgksu2-0 (2.0.3-3ubuntu5) ...
/var/lib/dpkg/info/libgksu2-0.postinst: 8: gconf-schemas: not found
dpkg: error processing libgksu2-0 (--configure):
 subprocess post-installation script returned error exit status 127
Errors were encountered while processing:
 compiz-plugins
 compiz-gtk
 compiz-gnome
 compiz
 evolution
 evolution-plugins
 gnome-games-data
 gnome-games
 gnome-session
 gthumb
 gwget
 libgksu2-0
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install.  Trying to recover:
Setting up compiz-plugins (0.3.6-1ubuntu9) ...
/var/lib/dpkg/info/compiz-plugins.postinst: 11: gconf-schemas: not found
dpkg: error processing compiz-plugins (--configure):
 subprocess post-installation script returned error exit status 127
Setting up libgksu2-0 (2.0.3-3ubuntu5) ...
/var/lib/dpkg/info/libgksu2-0.postinst: 8: gconf-schemas: not found
dpkg: error processing libgksu2-0 (--configure):
 subprocess post-installation script returned error exit status 127
Setting up gnome-session (2.18.0-0ubuntu2) ...
/var/lib/dpkg/info/gnome-session.postinst: 17: gconf-schemas: not found
dpkg: error processing gnome-session (--configure):
 subprocess post-installation script returned error exit status 127
Setting up compiz-gtk (0.3.6-1ubuntu9) ...
/var/lib/dpkg/info/compiz-gtk.postinst: 6: gconf-schemas: not found
dpkg: error processing compiz-gtk (--configure):
 subprocess post-installation script returned error exit status 127
Setting up gwget (0.98.1-2ubuntu1) ...
/var/lib/dpkg/info/gwget.postinst: 11: gconf-schemas: not found
dpkg: error processing gwget (--configure):
 subprocess post-installation script returned error exit status 127
Setting up gnome-games-data (2.18.0.1-0ubuntu1) ...
/var/lib/dpkg/info/gnome-games-data.postinst: 11: gconf-schemas: not found
dpkg: error processing gnome-games-data (--configure):
 subprocess post-installation script returned error exit status 127
Setting up gthumb (2.10.0-0ubuntu1) ...
/var/lib/dpkg/info/gthumb.postinst: 42: gconf-schemas: not found
dpkg: error processing gthumb (--configure):
 subprocess post-installation script returned error exit status 127
Setting up evolution (2.10.0-0ubuntu2) ...
/var/lib/dpkg/info/evolution.postinst: 11: gconf-schemas: not found
dpkg: error processing evolution (--configure):
 subprocess post-installation script returned error exit status 127
dpkg: dependency problems prevent configuration of compiz-gnome:
 compiz-gnome depends on compiz-gtk (= 1:0.3.6-1ubuntu9); however:
  Package compiz-gtk is not configured yet.
dpkg: error processing compiz-gnome (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of compiz:
 compiz depends on compiz-plugins; however:
  Package compiz-plugins is not configured yet.
 compiz depends on compiz-gtk; however:
  Package compiz-gtk is not configured yet.
 compiz depends on compiz-gnome; however:
  Package compiz-gnome is not configured yet.
dpkg: error processing compiz (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of gnome-games:
 gnome-games depends on gnome-games-data (= 1:2.18.0.1-0ubuntu1); however:
  Package gnome-games-data is not configured yet.
dpkg: error processing gnome-games (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of evolution-plugins:
 evolution-plugins depends on evolution (>= 2.10.0); however:
  Package evolution is not configured yet.
dpkg: error processing evolution-plugins (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 compiz-plugins
 libgksu2-0
 gnome-session
 compiz-gtk
 gwget
 gnome-games-data
 gthumb
 evolution
 compiz-gnome
 compiz
 gnome-games
 evolution-plugins