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Questions tagged [ros]

Questions related to ROS(Robotics Operating System)

ROS (Robot Operating System) provides libraries and tools to help software developers create robotics applications. It provides hardware abstraction, device drivers, libraries, visualizers, message-passing, package management, and more. ROS has different distributions for different Ubuntu versions.

The latest version is ROS Noetic Ninjemys, which is targeted at Ubuntu 20.04 (Focal), has a May 2025 end of life. The list of available versions can be found in documentation.

You may also want to consider asking your question on robotics stack exchange which is currently in the process of having the ROS Answers (answers.ros.org) Q&A database merged into it.

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ROS/OpenCV/Boost memory deallocation

I have the following callback function, which is intended to subscribe to a ROS image, convert the image to an openCV IplImage* for blob tracking and then free up the memory. void ImageCb(const sensor_msgs::ImageConstPtr &msg) { …
Oliver Cliff
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How to execute my own commands on terminal from java File

I am trying to make a eclipse project in Java to launch commands with some buttons. The libraries of Ros fuerte (These ones i want to use) are correctly installed and concretly i am trying to launch a ros command from a Java File using: String cmd…
user1679709
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ROS Linking errors using boost::filesystem library using C++ under linux

I get the following errors: CMakeFiles/ndt_visualiser.dir/src/fromFile.o: In function `boost::filesystem3::path::codecvt()': /usr/include/boost/filesystem/v3/path.hpp:377: undefined reference to…
user1576044
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RQT GUI cannot parse JointTrajectory message

I am trying to tune velocity PID controllers for a robot arm by sending a sine wave and finding constants that cause the arm to follow as closely as possible. First, I launch RQT GUI with the following command: rosrun rqt_gui rqt_gui Then I set my…
Valeriy Novytskyy
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ROS libuvc_camera package on Rasp Pi - No such devices

I recently tried to run noetic libuvc_camera package on a raspberry pi 3B+ hardware. The camera is tested okay with app like cheese and it is therefore listed as /dev/video0. Based the wiki page, I need find the vendor id, product id and serial to…
Yzeng
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How can I set an initial position (xyz) for a link that is connected via a floating joint in URDF?

I wish to connect a child link in a predefined initial position relative to another parent link, via a floating joint. When I try to do it with the origin tag of the joint it doesn't affect at all! …
vibrantcloud
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How can i use the python of the anaconda environment when I use "rosrun" to run a python file in ROS Noetic

I want use the python of the anaconda environment when I use ROS Noetic. But I found that even if the virtual environment is activated at the terminal，whether "rosrun" or "roslaunch" uses the Python for my Ubuntu…
user22280612
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Docker socket issue: "OSError: [Errno 99] Cannot assign requested address"

I am running code from this git which is designed to communicate with a radar and evaluation board from Texas Instruments using ROS1 noetic. I am running the repository on a windows device inside a Docker container which is from the ROS:noetic…
brad
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RVIZ 2 ROS2 Cant See Any Joints

Although I got the visuals for my joints in my code(two wheels at the side and one at the bottom) I can not see them on the rviz2 visuals -in gazebo I have no problems I can see the whole robot. I have the joint-state-publisher and…
Aleksan
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Encountering Rviz issues while trying to create a map with Hector SLAM

Rviz screenshotI am currently trying to run Rviz to create a map of my apartment. I finally got everything to run without errors, my Lidar is outputting data properly (I double checked by looking at the raw data), and Rviz is opening when I input…
Zach
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Publishing to a ROS topic to open robot hand through Python script

I am a trying to publish to a node through a Python script. The message to be published is supposed to open or close the hand of a robotic arm (Franka Research 3), which can be easily done using rostopic pub on the command line. To open: rostopic…
Arturo Medina
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ros Unable to correct problems, you have held broken packages. can not find any solution， try harder？

my ubuntu is 22.04.2lts when i download ros-neotic-full packages i met :Unable to correct problems, you have held broken packages.,there are many packages missing, so i run sudo apt install aptitude and sudo aptitude install ros-noetic-desktop-full…
贾鸿余
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How i can connect orin nx to pixhawk and then to intel d455

Hello im having trouble connecting pixhawk to orange cube with orin nx and then to intel d455. I dont know if i have to install all those packages from that website : https://ardupilot.org/dev/docs/companion-computer-nvidia-tx2.html Jetpack is…
Thanos Rom
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There was no error when using 3 joints, but I want to know why the simulation cannot be implemented using 2 joints

I'm trying to make a planar RR manipulator through gazebo. So I used the code and executed it, but the error below occurs. There was no error when the simulation was implemented with three joints, but when the simulation was implemented with two…
romain
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ros-iron-nav-bringup not found

I'm unable to install the package ros-iron-nav2-bringup, I get Unable to locate package ros-iron-nav2-bringup I successfully installed ros-iron-desktop, ros-iron-navigation2, ros-iron-slam-toolbox and some others. I'm using Ubuntu 22.04 on a…
Creends
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