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ROS launch not working for turtlebot

OS - Ubuntu 16.04.7 LTS ROS version - Kinetic Gazebo Version: 7.0.0 command working: roslaunch gazebo_ros empty_world.launch commands not working: ...
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Migration from uuv_thruster to gz-sim thruster plugin

I'm facing some difficulties in migrating some code from gazebo-classic to gz-sim. I have an unmanned surface vehicle equipped with four thrusters that receive the target propeller speed as control ...
Tony's user avatar
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topic [/talker] does not appear to be published yet

I try to run the following code on ROS Kinetic ...
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When I try to build Build a ros1/moveit1 package that was originally built with kinetic on noetic I get an eigen error; "static assertion failed"

After running catkin_make with this package i get an eigen error: ...
Alex's user avatar
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Timeout Issue with ‘/cameras/list’ Service in ROS Baxter Simulation on Ubuntu 18.04 and 16.04

I am a student currently working with the Baxter robot in a ROS simulation environment. I'm encountering an issue with the robot's camera where the system reports a timeout when waiting for the ...
Yujiao Dong's user avatar
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Can not communicate CS9 in ROS with staubli_val3_driver package

I am trying to implement a Staubli TX2-140 arm in ROS using staubli_val3_driver. I have copied val3 folder to the controller. When I open ros_server VAL3 app in teach pendant I have the following ...
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rtabmap source panel disabled

I am working on multi-session mapping with rtabmap. I am following this tutorial. but my source is disabled and even I can't find "File->Open database..." option in my gui. I am using ...
sai's user avatar
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ROS2 equivalent of ros::message_traits

I have a legacy code in ROS Kinetic Kame which needs to be reimplemented in RO2 Humble Hawksbill. The legacy code has few statements with ros::message_traits. While trying to find it myself, I ...
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Stereo Camera Calibration Issues with Point Grey Flea3 cameras on a Jackal Rover

We are currently working with a jackal robot from Clearpath Robotics, and we are having troubles with the stereo camera. We can get each individual Flea3 PointGrey camera to work individually, but ...
Austin Wohleb's user avatar
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Best approach to build a basic multi robot controller

I'm a beginner in ROS. I've 2 robots which run ROS Kinetic (Those robots are commercially available and I've access to the system). I've searched about the Multi robot control systems and found RMF, ...
Aimkiller's user avatar
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ROS node connection is not active

I'm using ROS Kinetic on Ubuntu 16.04 with a real robot. I'm loading a map on topic /map with the map_server node and I'm trying to subscribe the /map topic with a personal node called my_node, ...
Team Robotica's user avatar
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Unable to install ROS Kinetic on Ubuntu 22.04

While installing ROS Kinetic on Ubuntu 22.04, I am getting the following errors : ...
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1 answer
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Robot localization (IMU + GPS) position Without GPS

I would like to get the GPS position based on the received GPS and the IMU that is at work (base_link). But I would like GPS to be calculated and when the real GPS disappears, that is, calculations ...
Илья Белянов's user avatar
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ROS -- kobuki_interbotix_kinect.urdf.xacro not found

I'm setting up my system a so that I can run turtlebot2i on simulation. The robot is present at the lab in my university. I have installed ubuntu xenial, ros-kinetic because apparently it has all the ...
Merabro's user avatar
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Does ROS 1 have compatibility with any Renesas Hardware? Or is it just available for ROS-micro (ROS 2)?

I'm doing research about ROS compatibility with different microcontroller hardware. From what I've searched, I have only found compatibility with microcontrollers using micro-ROS, which is built with ...
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error : actuatorTorque // setInitPose

Our team is following this manual, and we have run into an error when attempting to call the /set_actuator_state and ...
youn's user avatar
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2 answers
410 views

Error: Packages could not have their rosdep keys resolved

I am getting an error when I give this command rosdep install --from-paths ./ -i -y --rosdistro melodic ...
Vishnu Nair's user avatar
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1 answer
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building catkin workspace raspberry pi 4

I have been trying to install the ROS dependencies for Raspberry pi 4. I keep getting the same errors no matter what I do. I have followed the instructions that are on installing ROS Kinetic on the ...
Matthew's user avatar
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Queue full: chose drop actions?

Is it possible to decide what action should be taken when the queue size of a publisher or subscriber is reached? e.g. to let the newest message drop instead of the oldest, or to not drop anything at ...
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1 answer
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Publish rate higher than subscriber rate

If the publisher rate is set higher than the subscriber rate, will the message rate of the publisher slow down to match the subscriber rate? Originally posted by JoshE on ROS Answers with karma: 5 on ...
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1 answer
155 views

How to get second joystick with joy_node?

Hi, I'm currently working on a project that requires the use of multiple joystick-like devices. I can find them with ros2 run joy joy_enumerate_devices that ...
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1 answer
67 views

Odd Docker roscore/roslaunch delays with Linux kernel 6.1

Hello, I have an odd one here and am trying to figure out a possible root cause! The Situation I am running a custom Linux version made using Buildroot, with application ROS code containerized. I have ...
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1 answer
90 views

Rviz not displaying marker on first call of publish(marker)

Using the attached code for some reason the marker does not appear with the first call of publish() without a small delay inserted. If I echo the visualization_marker topic without the delay it does ...
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2 answers
25 views

How to calculate pose given a start point and end point?

Lets say I have two points(co-ordinates) defined with respect to a frame. If I can starting and ending point of the pair we can get direction similar to how arrow marker works in rviz. Is there anyway ...
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1 answer
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/scan topic comes from a camera node rather than the desired LiDAR node

Hi guys. I'm trying to use a rplidar to run amcl navigation with my pre-built map on Turtlebot2, ROS Kinetic. Below is my amcl launch file: ...
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1 answer
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Question about scan.ranges information

Just to make sure I understand laser scan data. ranges is an array of scan distances. so: ranges[0] shows scan distance at ...
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1 vote
1 answer
83 views

How to install ROS 1 in Ubuntu 22.10?

Hi, I would like to know which version and how can I install ROS 1 in Ubuntu 22.10? Thank you Originally posted by akumar3.1428 on ROS Answers with karma: 61 on 2022-11-14 Post score: 1
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2 answers
25 views

How to add filter to pointcloud_to_laserscan package and depthimage_to_laserscan package

I need to add filters to my pointcloud and depthimage data before converting them to ...
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1 answer
3 views

Why is my marker getting displayed at location 2 but not location 1?

I am trying to create a home service robot using a turtlebot. In it the robot should start at origin at travel to point 1 where a marker has been displayed, stay there for 5 seconds and the marker ...
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1 answer
138 views

pointcloud_to_laserscan for ROS1 kinetic

I'm looking for the pointcloud_to_laserscan package for ROS1 kinetic. Does anyone know a repo for this? I tried the link on the ROS wiki but couldn't find a kinetic branch. I try the indigo branch as ...
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1 answer
49 views

Robot initial pose accuracy

Hi, I have a robot. I use imu sensor and odometry for localization on map. But the initial pose of robot in real life and simulation are not same. Imagine I put robot at the starting point of the map ...
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1 answer
9 views

Using message_filters::Synchronizer inside class

Hi all! Thanks to @ravijoshi,I have solved this one topic receiving problem,the link about that is here #q406915 But when I try to receive two topics at the same time, I don't know how to put the ...
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1 answer
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nh.subscribe works but message_filters::Subscriber not

I'm trying to learn the ROS topic, but I met a problem that really confused me. Here is the origin code. It works well, I can receive the image and pass it to ...
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1 answer
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data is not seen from the robot when published from the workstation

I have followed this tutorial from this link https://www.youtube.com/watch?v=YMG6D... for setting up and troubleshooting the ros networks. I have modified it precisely the same way as it is provided ...
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1 answer
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[python] how the vehilce keep moving, while the if condition doesnot receive any value?

In the following code, i want the robot keep moving up to the time that the if condition gets True. Now the problem is that, when one of the conditions in if, receives no value (ValueError: min() arg ...
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1 answer
4 views

[python] output of a code be called in another python code automatically

Hi everyone, I have a robot equipped with different sensors. one of them is 3d lidar. i have used the pointcloud and converted them into lasersacn. now i have written a simple python code which do ...
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1 answer
23 views

(python) how to save ranges of laser scan related to each time stamp?

hi I have a python problem. I want to save the output of msg.ranges in a csv file. actually i want to have a csv file that in the first column time stamp are saved, and in the second column ranges. i ...
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3 answers
139 views

extracting values from laser scan data!

Hi, I have three objects in front of my robot. I want to specify distance to these objects. i have converted pointcloud into laser scan. now i want to extract the least values from the laser scan data....
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1 answer
15 views

ROS dynamic_reconfigure::Client::setConfiguration could not set configuration

I'm writing a simple client dynamic_reconfigure.If the batch_size is equal to 20, then client should reset one parameter in config to 0.0. However, while running ...
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1 answer
13 views

C++ Dynamic_reconfigure client API in ROS

If we only implement dynamic_reconfigure in server side, we have to manually calibrate parameters in GUI. Calibrating parameters is tedious if we have a lot of parameters. I'm using ros ...
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1 answer
7 views

Argument Requirement Error in URDF Tutorial Display Launch

please help me regarding below error:- [/opt/ros/kinetic/share/urdf_tutorial/launch/display.launch] requires the 'model' arg to be set The traceback for the exception was written to the log file. ...
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1 answer
2 views

Is my ROS environment perfect? or not?

I installed kinetic in ubuntu16.04, and I did operation check along ROS wiki tutorial. I did the following command. ...
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1 answer
38 views

How to save map by using map_server package according to the topics?

I used the multi_map_merge package to merge map from robot 1 and robot 2. But when I used rosrun map_server map_saver -f ~/map, the map is only saved the merge map ...
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1 answer
3 views

the position of the detected object is not correct!

hi, after launching find_3d_object.launch, i can see that the position of the detected object is not correct: in the following you can see one example. i have considered camera_color_optical_frame as ...
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1 answer
4 views

How to change number of particles in gmapping package?

I would like to ask is this is the correct coding to change the number of particles of the gmapping package in launch file? ...
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2 answers
111 views

ROS communication between both machines slow in router with out internet connection

Hi, I’m running Ros Kinetic under Ubuntu 16.04. The IP address are: 192.168.1.101 (master) on RPi4 - Robot Ros noetic, ubuntu 20.04, slave on my labtop 192.168.1.102 , Both are connected to the ...
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1 answer
2 views

Can't locate node [joints_receive_from_arduino.py] in package [ros_control_example]

I have been trying to build and run ros_control_example(https://github.com/bandasaikrishna/ros_control_example) package. But, it seems I have done something wrong. I have created catkin_ws folder and ...
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1 answer
657 views

ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies

Hello, I am trying to install Moveit with the version kinetic, when I type: ...
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1 answer
8 views

Imu data is not fused into robot_localization even if the after frame id is set to base_link

According to the documentation in : http://docs.ros.org/en/noetic/api/robot_localization/html/state_estimation_nodes.html I was able to transform the imu data header fram from "imu_link" ...
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1 answer
165 views

Unable to link ros::package::getPath

I'm trying to do the same as this example : https://answers.ros.org/question/39523/rospackagegetpath-problem/ The function is documented here : http://docs.ros.org/en/jade/api/roslib/html/c++/...
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