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  1. ROS Answers archive

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

  2. Rosdep update error:The read operation timed out - ROS Answers

    Nov 5, 2016 · I'm troubled in install ROS on Ubuntu 14.04, when I try rosdep update, this is what it shows:

  3. Cannot locate rosdep definition - ROS Answers archive

    Apr 9, 2019 · There is no ROS package called gazebo_plugin, nor is there an Ubuntu package (in your case) that is called gazebo_plugin, so rosdep cannot determine which package should be installed to …

  4. RTI Connext DDS environment script not found (ROS2 on Windows)

    May 28, 2021 · I am following the official tutorial to install ROS2 on Windows. At the step of Environment setup, I did "> call C:\dev\ros2 galactic\local setup.bat" and here comes the error:

  5. rviz error. segmentation fault (core dumped) - ROS Answers

    Feb 12, 2019 · IBUS-WARNING **: Unable to connect to ibus: could not connect: connection refused. Segmentation fault (core dumped)

  6. libexec directory does not exist - ROS Answers

    Nov 16, 2020 · And it works fine. But when I use ros2 run ea maintenance mode manager maintenance mode it doesn't work, I get no executable found.

  7. TF_OLD_DATA ignoring data from the past for frame base ... - ROS …

    By doing an echo of my /tf topic I am able to see the timestamps of the different transforms, and I realized that those timestamps are given in seconds from 1970, whereas the message I get from …

  8. ROS 2: How to quit a node from within a callback?

    Sep 15, 2022 · I could do this in ROS 1 simply by calling rospy.signal_shutdown (). In ROS 2, I tried calling rclpy.shutdown (), but this just hangs the node. Any thoughts? Below is a modification of the …

  9. Robot meshes not visible in rviz [Windows11, WSL2] - ROS Answers

    Jan 12, 2022 · Hi, I am using ROS Noetic on Ubuntu 20.04 Windows11 WSL2. When I try to load my robot into rviz or into the MoveIt setup, no meshes are visible. I don't get any errors at all. Here is a …

  10. MoveIt! unable to sample any valid states for goal tree - ROS Answers

    I have a robotic arm integrated with MoveIt! and Gazebo. When I launch the Gazebo simulation and MoveIt! controller, I can use a python script which, using the moveit_commander, can set the joint …