ROS2 Navigation2 karto_sdk User Warning
On a Linux 20.04 Bionic VMBox on MACM1, aarch64 Machine, after "installing ROS2 via Foxy with Debian Packages", https://docs.ros.org/en/foxy/Installa..., ros-foxy-desktop, and configured the colcon_w workspace, configured and sourced .bashrc, ran :~printenv|grep ROS with this result, indicating a good install: ROS_VERSION=2 ROS_PYTHON_VERSION=3 ROS_DOMAIN_ID=0 ROS_LOCALHOST_ONLY=0 ROS_DISTRO=foxy
executed :~ sudo ros2 doctor All 4 checks passed
Then installed ROS2 "ros-foxy-navigation2" and ros-foxy-nav2-bringup and executed :~ sudo ros2 doctor, to validate installation with result: /opt/ros/foxy/lib/python3.8/site-packages/ros2doctor/api/package.py: 124: UserWarning: Cannot find required versions of packages: karto_sdk
All 4 checks passed
:~
I was unable to locate the apparent missing package. Is this a critical issue or is there a remedy?