rosdep install error: Unable to locate package python3-catkin-pkg-modules

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I am trying to install ROS2 foxy using instructions here: https://docs.ros.org/en/foxy/Installa...

First, one of the command didnt go through:

 echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] http://packages.ros.org/ros2/ubuntu $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null
    Illegal variable name.

later on this instruction:

 rosdep install --from-paths /proj/xsjsswstaff/jues/som/krs/ros2-linux/share
--ignore-src -y --skip-keys "cyclonedds fastcdr fastrtps rti-connext-dds-5.3.1 urdfdom_headers"

I get an error:

E: Unable to locate package python3-catkin-pkg-modules
ERROR: the following rosdeps failed to install
  apt: command [sudo -H apt-get install -y python3-catkin-pkg-modules] failed

I am guessing they are unrelated. Has anyone else seen this? I am a newbie, so any help will be appreciated.