ros-melodic installation on ubuntu-16.04
Hi i am trying to install Ros-melodic on ubuntu-16.04. when i enter the command
mh@mh-Inspiron-1545:~/ros_catkin_ws$ **rosdep install --from-paths src --ignore-src --rosdistro melodic -y**
i found the following error,
ERROR: the following packages/stacks could not have their rosdep keys resolved
to system dependencies:
catkin: No definition of [python-argparse] for OS version [xenial]
rosgraph: No definition of [python-rospkg] for OS version [xenial]
resource_retriever: No definition of [python-rospkg] for OS version [xenial]
rqt_graph: No definition of [python-rospkg] for OS version [xenial]
rqt_console: No definition of [python-rospkg] for OS version [xenial]
qt_gui: No definition of [python-rospkg] for OS version [xenial]
rqt_runtime_monitor: No definition of [python-rospkg] for OS version [xenial]
rosmake: No definition of [python-rospkg] for OS version [xenial]
rqt_dep: No definition of [python-rospkg] for OS version [xenial]
rqt_bag: No definition of [python-rospkg] for OS version [xenial]
roslib: No definition of [python-rospkg] for OS version [xenial]
qt_gui_py_common: No definition of [python-rospkg] for OS version [xenial]
rqt_plot: No definition of [python-rospkg] for OS version [xenial]
rosclean: No definition of [python-rospkg] for OS version [xenial]
rqt_publisher: No definition of [python-rospkg] for OS version [xenial]
roswtf: No definition of [python-rospkg] for OS version [xenial]
gazebo_dev: No definition of [libgazebo9-dev] for OS version [xenial]
rqt_robot_steering: No definition of [python-rospkg] for OS version [xenial]
rqt_web: No definition of [python-rospkg] for OS version [xenial]
roslisp: No definition of [python-argparse] for OS version [xenial]
rqt_shell: No definition of [python-rospkg] for OS version [xenial]
roscreate: No definition of [python-rospkg] for OS version [xenial]
rqt_py_console: No definition of [python-rospkg] for OS version [xenial]
rqt_topic: No definition of [python-rospkg] for OS version [xenial]
rospy: No definition of [python-rospkg] for OS version [xenial]
rosunit: No definition of [python-rospkg] for OS version [xenial]
gazebo_ros: No definition of [python-argparse] for OS version [xenial]
roslaunch: No definition of [python-rospkg] for OS version [xenial]
rqt_tf_tree: No definition of [python-rospkg] for OS version [xenial]
rqt_service_caller: No definition of [python-rospkg] for OS version [xenial]
rqt_msg: No definition of [python-rospkg] for OS version [xenial]
rosbag: No definition of [python-rospkg] for OS version [xenial]
rqt_logger_level: No definition of [python-rospkg] for OS version [xenial]
rosmsg: No definition of [python-rospkg] for OS version [xenial]
rqt_pose_view: No definition of [python-rospkg] for OS version [xenial]
rqt_robot_monitor: No definition of [python-rospkg] for OS version [xenial]
Can you show us the output of
lsb_release -a?And the output of
python /usr/lib/python2.7/dist-packages/rospkg/os_detect.py(assuming you did not usepipto installrospkg).I've just successfully built Melodic from source on Xenial
amd64in a Docker container, so it should be possible (you'll need to force at least C++11 though).Did you set
ROS_OS_OVERRIDE? It should not be needed.This is funny. I am trying to do the same thing, 2 days after the OP (build melodic on a 16.04 machine). But it seems like I got further than (s)he did:
Here are some clues to my problem:
I followed the instructions at http://gazebosim.org/tutorials?tut=in... and have successfully installed libgazebo9-dev on my machine:
(Out of characters to show the output, but it shows as installed).
What else can ...(more)
As you can see here, there is indeed no rule for
libgazeb9-devforxenial. Gazebo 9 doesn't target Ubuntu Xenial, that's probably why.If you've already made sure you've got
libgazeb9-devinstalled, then you could add--skip-keys="libgazebo9-dev <probably some other gazebo-related keys>"to therosdepcommand.Alternatively, you could create a local
rosdepdb file that adds the rule forlibgazeb9-devforxenial.Hello @gvdhoorn, Thank you for the suggestion. Not knowing about the
--skip-keysoption, I instead went down the path of modifying my/etc/ros/rosdep/sources.list.d/20-default.listto point to a local version ofrosdep/base.yamland updating that for my gazebo9 installation. It seems like both approaches would achieve the same end.That worked for the
rosdep --installpart of my build, but then the./src/catkin/bin/catkin_make_isolatedstep failed and the "too hard" LED came on.Since, what I _really_ want at the moment is a ROS running on my Ubuntu 16.04 and another one running on my Raspberri Pi, I'm just going to install prebuilt packages for a version of ROS that is reported to support both of those architectures (Lunar).
Thank you again for the suggestion.
--wpd