[ros-users] Ubuntu Broken Dependencies

After following the download/install procedure for Ubuntu I get this message
when I do an install:

~$ sudo apt-get install ros-cturtle-base
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-cturtle-base: Depends: ros-cturtle-ros (= 1.2.1-30~lucid) but it is
not going to be installed
                    Depends: ros-cturtle-roslisp-support (= 0.2.9-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-camera-drivers (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-common-msgs (= 1.2.1-30~lucid) but
it is not going to be installed
                    Depends: ros-cturtle-common (= 1.2.0-30~lucid) but it is
not going to be installed
                    Depends: ros-cturtle-diagnostics (= 1.2.0-30~lucid) but
it is not going to be installed
                    Depends: ros-cturtle-driver-common (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-geometry (= 1.2.0-30~lucid) but it
is not going to be installed
                    Depends: ros-cturtle-image-common (= 1.2.0-30~lucid) but
it is not going to be installed
                    Depends: ros-cturtle-image-transport-plugins (=
0.3.0-30~lucid) but it is not going to be installed
                    Depends: ros-cturtle-image-pipeline (= 1.2.1-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-imu-drivers (= 1.2.0-30~lucid) but
it is not going to be installed
                    Depends: ros-cturtle-joystick-drivers-tutorials (=
1.2.1-30~lucid) but it is not going to be installed
                    Depends: ros-cturtle-joystick-drivers (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-laser-drivers (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-laser-pipeline (= 1.0.1-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-navigation (= 1.2.2-30~lucid) but
it is not going to be installed
                    Depends: ros-cturtle-physics-ode (= 1.2.3-30~lucid) but
it is not going to be installed
                    Depends: ros-cturtle-robot-model (= 1.2.2-30~lucid) but
it is not going to be installed
                    Depends: ros-cturtle-point-cloud-perception (=
0.2.9-30~lucid) but it is not going to be installed
                    Depends: ros-cturtle-ros-tutorials (= 0.2.2-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-simulator-gazebo (= 1.2.3-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-simulator-stage (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-slam-gmapping (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-sound-drivers (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-vision-opencv (= 1.2.4-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-visualization-common (=
1.2.0-30~lucid) but it is not going to be installed
                    Depends: ros-cturtle-visualization (= 1.2.0-30~lucid)
but it is not going to be installed
                    Depends: ros-cturtle-visualization-tutorials (=
0.2.0-30~lucid) but it is not going to be installed
E: Broken packages

System information:
Fresh Ubuntu 10.04 Lucid install
Kernel 2.6.32-24

Please let me know what I can try to get things working.
Thanks,
-Paul