Run this in the ROS workspace:
colcon build --base-paths src/ubiquity_motor_ros2 src/ubiquity_motor_ros2/ubiquity_motor_ros2_msgs --cmake-args --event-handlers console_direct+
source install/setup.bash
ros2 launch ubiquity_motor_ros2 motors.launch.py
ros2 run teleop_twist_keyboard teleop_twist_keyboard --ros-args -p stamped:=true