Troubles installing ROS C turtle base

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Hi there,

I am following step by step the directions reported on this web page to install ROS Cturtle on Ubuntu 10.10. However, when I try to install the package (step 1.4), I received a message like:

Reading package lists... Done Building dependency tree
Reading state information... Done E: Unable to locate package ros-cturtle-base

I also tried the other packages (ROS only and PR2), but I got the same message. Same thing if I click on the link suggested on the web page.

What am I doing wrong? I apologize if my question sounds very basic, but I am beginner with Linux and with programming in general.

Thanks in advance for your help!

Cheers, George

Update: Hi guys,

thank you for you reply. I don't know what to say... I tried to re-install everything yesterday (following carefully the directions), and I obtained the same result as before. I tried today, and I got a different error message (see below). I tried multiple times, but I obtained always the same result.

Why this difference? What did I do wrong now? I know that most likely it is my bad, but is it possible that there is some problems in the repository?

Thank you, George

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-tutorials (= 0.2.4-s1297126046~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-geometry-tutorials (= 0.1.3-s1297208879~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-joystick-drivers-tutorials (= 1.4.0-s1297127970~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-slam-gmapping (= 1.2.2-s1295083305~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-joystick-drivers (= 1.2.2-s1295082139~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-ros (= 1.2.4-s1295078370~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-visualization (= 1.2.2-s1295084832~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-camera-drivers (= 1.2.8-s1297313372~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-vision-opencv (= 1.2.5-s1295082686~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-rx (= 0.0.1-s1295080202~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-image-pipeline (= 1.2.2-s1295083182~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-sound-drivers (= 1.2.0-s1295084310~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-simulator-stage (= 1.2.4-s1296091028~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-image-common (= 1.2.0-s1295082600~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-common-tutorials (= 0.1.2-s1297390611~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-imu-drivers (= 1.2.1-s1295085951~jaunty) but it is not going to be installed
                    Depends: ros-cturtle-ros-comm (= 0.0 ...