ModalAI Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Error when lunching voxl_mpa_to_ros.launch

    ROS
    3
    5
    219
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Mohammad GoliM
      Mohammad Goli
      last edited by

      Hi,

      I installed ROS on our VOXL2 machine following this guide:
      https://docs.modalai.com/ros-installation-voxl2/

      when I try to run the voxl_mpa_to_ros node, by running the below command, it runs roscore correctly but gives an error with the actual node:

      voxl2:~/$ roslaunch voxl_mpa_to_ros voxl_mpa_to_ros.launch
      here is the error:

      /opt/ros/melodic/lib/voxl_mpa_to_ros/voxl_mpa_to_ros_node: error while loading shared libraries: libyaml-cpp.so.0.5: cannot open shared object file: No such file or directory
      failed to start local process: /opt/ros/melodic/lib/voxl_mpa_to_ros/voxl_mpa_to_ros_node __name:=voxl_mpa_to_ros_node __log:=/home/root/.ros/log/887bafd6-a917-11ef-818d-00c0cab3a5da/voxl_mpa_to_ros_node-2.log
      local launch of voxl_mpa_to_ros/voxl_mpa_to_ros_node failed
      [voxl_mpa_to_ros_node-2] process has died [pid -1, exit code 127, cmd /opt/ros/melodic/lib/voxl_mpa_to_ros/voxl_mpa_to_ros_node __name:=voxl_mpa_to_ros_node __log:=/home/root/.ros/log/887bafd6-a917-11ef-818d-00c0cab3a5da/voxl_mpa_to_ros_node-2.log].
      log file: /home/root/.ros/log/887bafd6-a917-11ef-818d-00c0cab3a5da/voxl_mpa_to_ros_node-2*.log

      I appreciate your advice on how to fix this.

      Thanks

      1 Reply Last reply Reply Quote 0
      • Mohammad GoliM
        Mohammad Goli
        last edited by

        To resolve the issue with the missing shared library, I followed these steps:

        Download the YAML-CPP source code archive:
        wget https://github.com/jbeder/yaml-cpp/archive/refs/tags/yaml-cpp-0.5.3.tar.gz
        Extract the archive:
        tar -xvf yaml-cpp-0.5.3.tar.gz

        Navigate to the extracted directory and create a build directory:
        cd yaml-cpp-0.5.3
        mkdir build
        cd build

        Configure the build with CMake, enabling shared libraries and setting the installation prefix:
        cmake .. -DBUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local

        Compile the library:
        make -j$(nproc)

        Install the compiled library:
        sudo make install

        Update the shared library cache:
        sudo ldconfig

        After completing these steps, the shared library issue was resolved successfully.

        However, now when I run the launch file I get the following error ( echo: write error: Broken pipe)
        voxl2:/$ roslaunch voxl_mpa_to_ros voxl_mpa_to_ros.launch
        ... logging to /home/root/.ros/log/eb195fbe-b8e2-11ef-b28f-00c0cab3a5da/roslaunch-m0054-6563.log
        Checking log directory for disk usage. This may take a while.
        Press Ctrl-C to interrupt
        Done checking log file disk usage. Usage is <1GB.

        started roslaunch server http://m0054:38143/

        SUMMARY

        PARAMETERS

        • /rosdistro: melodic
        • /rosversion: 1.14.13

        NODES
        /
        voxl_mpa_to_ros_node (voxl_mpa_to_ros/voxl_mpa_to_ros_node)

        auto-starting new master
        process[master]: started with pid [6577]
        ROS_MASTER_URI=http://localhost:11311

        setting /run_id to eb195fbe-b8e2-11ef-b28f-00c0cab3a5da
        process[rosout-1]: started with pid [6588]
        started core service [/rosout]
        process[voxl_mpa_to_ros_node-2]: started with pid [6591]

        MPA to ROS app is now running

        Found new interface: hires_large_color
        Found new interface: hires_large_encoded
        Found new interface: hires_large_grey
        Found new interface: hires_small_color
        Found new interface: hires_small_encoded
        Found new interface: hires_small_grey
        Found new interface: hires_snapshot
        Found new interface: qvio_overlay
        Found new interface: tracking_down_color
        Found new interface: tracking_down_grey
        Found new interface: tracking_down_small_color
        Found new interface: tracking_down_small_encoded
        Found new interface: tracking_down_small_grey
        Found new interface: tracking_front
        /usr/bin/voxl-list-pipes: line 38: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 32: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 35: echo: write error: Broken pipe
        [voxl_mpa_to_ros_node-2] process has died [pid 6591, exit code -11, cmd /opt/ros/melodic/lib/voxl_mpa_to_ros/voxl_mpa_to_ros_node __name:=voxl_mpa_to_ros_node __log:=/home/root/.ros/log/eb195fbe-b8e2-11ef-b28f-00c0cab3a5da/voxl_mpa_to_ros_node-2.log].
        log file: /home/root/.ros/log/eb195fbe-b8e2-11ef-b28f-00c0cab3a5da/voxl_mpa_to_ros_node-2
        .log
        *
        /usr/bin/voxl-list-pipes: line 38: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 32: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 35: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 38: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 32: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 35: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 38: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 32: echo: write error: Broken pipe
        /usr/bin/voxl-list-pipes: line 35: echo: write error: Broken pipe
        Screenshot from 2024-12-12 18-46-37.png

        I appreciate if someone can provide any help on this.

        Thanks,

        1 Reply Last reply Reply Quote 0
        • Zachary Lowell 0Z
          Zachary Lowell 0 ModalAI Team
          last edited by

          I will take a gander at this today @Mohammad-Goli and get abck with an answer - I will say the ros1 is deprecated and we tend to support or push for ros2 - does the same issue persist with ros2?

          Mohammad GoliM 1 Reply Last reply Reply Quote 0
          • Mohammad GoliM
            Mohammad Goli @Zachary Lowell 0
            last edited by Mohammad Goli

            @Zachary-Lowell-0

            All our robots are currently operating on ROS1, and we haven’t transitioned to ROS2 yet. Any help, advice, or guidance on this would be greatly appreciated. Thank you!

            1 Reply Last reply Reply Quote 0
            • T
              teddy.zaremba
              last edited by

              Hi @Mohammad-Goli, it seems like something on your VOXL is prematurely closing the file descriptor attached to the process that lists the pipes - I'm not sure what that is. I'm also not getting any errors with libyaml-cpp so that could be part of the problem. I'm running on SDK version 1.3.5, so I if were you I'd re-flash your VOXL and try the install again.

              Flashing the VOXL guide

              Sorry I couldn't recreate your issue. If you're still having a problem after re-flashing, let me know what SDK you tried and I'll give it a shot on my end.

              1 Reply Last reply Reply Quote 0
              • First post
                Last post
              Powered by NodeBB | Contributors