ERROR: the following packages/stacks could not have their rosdep keys resolved
to system dependencies:
learning_launch: Cannot locate rosdep definition for [python3-pytest]
learning_gazebo: Cannot locate rosdep definition for [python3-pytest]
learning_topic: Cannot locate rosdep definition for [python3-pytest]
learning_urdf: Cannot locate rosdep definition for [python3-pytest]
learning_parameter: Cannot locate rosdep definition for [python3-pytest]
learning_tf: Cannot locate rosdep definition for [python3-pytest]
learning_pkg_python: Cannot locate rosdep definition for [python3-pytest]
learning_service: Cannot locate rosdep definition for [python3-pytest]
learning_action: Cannot locate rosdep definition for [python3-pytest]
learning_node: Cannot locate rosdep definition for [python3-pytest]
learning_qos: Cannot locate rosdep definition for [python3-pytest]