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  1. ROS Answers archive

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

  2. 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 …

  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 …

  4. Ubuntu 22.04 ros2 humble installing error GPG, libc-bin - ROS …

    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

  5. camera calibration file head_camera.yaml not found - ROS Answers

    May 4, 2018 · camera calibration file head_camera.yaml not found Hello, I'm trying to launch my USB camera, i typed : roslaunch cam-test.launch so my camera is working but i had two …

  6. ModuleNotFoundError: No module named 'rosbag2_py' - ROS …

    Dec 20, 2022 · Answers You can see here that there is no rosbag2_py for Foxy (at least in the binary form, I think? There is in its repository a foxy branch, you can try to build it from source).

  7. MoveIt! unable to sample any valid states for goal tree - ROS …

    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 …

  8. ModuleNotFoundError: No module named 'ament_package' - ROS …

    Jun 9, 2019 · I also have ROS Melodic in my system. For ROS2 instead of sourcing, the environment from source /opt/ros/dashing/setup.bash I am setting the CMAKE PREFIX PATH …

  9. RTI Connext DDS environment script not found (ROS2 on …

    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:

  10. ROS2 How to uninstall/remove a package - ROS Answers

    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 …