No definition of [boost] for OS version [xenial]

edit

I'm installing ROS kinetic from source code on Ubuntu 16.04.6 LTS, by following instructions on http://wiki.ros.org/kinetic/Installat...

However when I proceed to below step, I got strange errors.

$ rosdep install --from-paths src --ignore-src --rosdistro kinetic -y

ERROR: the following packages/stacks could not have their rosdep keys resolved
to system dependencies:

roslaunch: No definition of [python-rospkg] for OS version [xenial]
rosconsole: No definition of [boost] for OS version [xenial]
roslisp: No definition of [boost] for OS version [xenial]
catkin: No definition of [python-argparse] for OS version [xenial]
message_filters: No definition of [boost] for OS version [xenial]
rosmake: No definition of [python-rospkg] for OS version [xenial]
rostime: No definition of [boost] for OS version [xenial]
roslib: No definition of [python-rospkg] for OS version [xenial]
rosgraph: No definition of [python-rospkg] for OS version [xenial]
roscreate: No definition of [python-rospkg] for OS version [xenial]
cpp_common: No definition of [boost] for OS version [xenial]
rostest: No definition of [boost] for OS version [xenial]
rospy: No definition of [python-rospkg] for OS version [xenial]
rosunit: No definition of [python-rospkg] for OS version [xenial]
rospack: No definition of [boost] for OS version [xenial]
roswtf: No definition of [python-rospkg] for OS version [xenial]
rosbag: No definition of [python-rospkg] for OS version [xenial]
rosclean: No definition of [python-rospkg] for OS version [xenial]
rosbag_storage: No definition of [boost] for OS version [xenial]
rosmsg: No definition of [python-rospkg] for OS version [xenial]

Thanks a lot.