This is the static archive of questions from ROS Answers archive Answers.

May 21, 2023 · I've installed ROS 2 Rolling on Ubuntu 22.04 and after launching and then closing, for example, rqt_graph, I get the following warning: Warning: class loader.ClassLoader: SEVERE …

ROS distribution : ROS2 humble hawksbill to install ROS2 humble, while I'm following this : https://docs.ros.org/en/humble/Installation/Ubuntu-Install-Debians.html

Note that I had to build ros from source setting python executable to python3 in order to use python3 packages with ros melodic.

Aug 30, 2021 · Is there some clear guidance when to use which? I have read somewhere that ROS INFO is for C, whereas ROS INFO_STREAM is for C++...but I am sure there must be more to it. Thx …

Jul 8, 2020 · You seem to be using tf_monitor, I think it might be bugged because if I use it I also get "unknown publisher" but if I use rqt_tf_tree the broadcasters are correctly identified. Also roswtf …

Aug 27, 2020 · After the command: $ sudo apt install ros-melodic-moveit The terminal reminded me as follows: The following packages have unmet dependencies: ros-melodic-desktop-full : Depends: ros …

Oct 25, 2020 · In ROS1 I would source ROS again, rebuild my packages and it would be done ! But here in ROS2 Dashing even when sourcing ROS2 again I still have this package in those env variables : …

Asked by jlepers on 2020-02-28 06:06:36 UTC

Feb 23, 2021 · I'm using a launchfile (launched automatically during the boot process through rc.local), with several nodes set as respawn=true (which is the behaviour I want : if the node crashes, I want it …