aptitude install ruby-gnome2
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done
Building tag database... Done
The following packages are BROKEN:
  libgstreamer0.8-ruby libvte-ruby
The following packages have been automatically kept back:
  libgstreamer0.10-0 libicu36
The following NEW packages will be installed:
  ruby-gnome2
0 packages upgraded, 3 newly installed, 0 to remove and 2 not upgraded.
Need to get 122kB of archives. After unpacking 537kB will be used.
The following packages have unmet dependencies:
  libvte-ruby: Depends: libvte4 (>= 1:0.12.1) which is a virtual package.
  libgstreamer0.8-ruby: Depends: libgstreamer-plugins0.8-0 (>= 0.8.0) which is a virtual package.
                        Depends: libgstreamer0.8-0 (>= 0.8.11) which is a virtual package.
Resolving dependencies...
Unable to resolve dependencies!  Giving up...
Abort.