Cannot Install ROS Electric Desktop-Full on Oneiric AMD64 - In Dependency Hell

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stephanie@WorkTime:~$ sudo apt-get install ros-electric-desktop-full
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 ros-electric-desktop-full : Depends: ros-electric-slam-gmapping (= 1.2.5-s1336543727~oneiric) but it is not going to be installed
                             Depends: ros-electric-vision-opencv (= 1.6.13-s1336531637~oneiric) but it is not going to be installed
                             Depends: ros-electric-perception-pcl (= 1.0.2-s1336532338~oneiric) but it is not going to be installed
                             Depends: ros-electric-image-pipeline (= 1.6.4-s1336532075~oneiric) but it is not going to be installed
                             Depends: ros-electric-simulator-gazebo (= 1.4.15-s1338549736~oneiric) but it is not going to be installed
                             Depends: ros-electric-image-transport-plugins (= 1.4.2-s1336531748~oneiric) but it is not going to be installed
                             Depends: ros-electric-navigation (= 1.6.5-s1336537141~oneiric) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
stephanie@WorkTime:~$ sudo apt-get install ros-electric-slam-gmapping ros-electric-vision-opencv ros-electric-image-pipeline ros-electric-simulator-gazebo ros-electric-image-transport-plugins ros-electric-navigation
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 ros-electric-navigation : Depends: ros-electric-perception-pcl (= 1.0.2-s1336532338~oneiric) but it is not going to be installed
                           Depends: libsdl-image1.2-dev but it is not going to be installed
 ros-electric-simulator-gazebo : Depends: ros-electric-perception-pcl (= 1.0.2-s1336532338~oneiric) but it is not going to be installed
 ros-electric-vision-opencv : Depends: libopencv2.3-dev (= 2.3.1+svn6514+branch23-12~oneiric) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
stephanie@WorkTime:~$ sudo apt-get install libopencv2.3-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libopencv2.3-dev : Depends: libtiff4-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
stephanie@WorkTime:~$ sudo apt-get install libopencv2.3-dev libtiff4-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libtiff4-dev is already the newest version.
libtiff4-dev set to manually installed.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages ...