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amcl not publishing map -> odom under different namespace

Hello, I'm attempting to setup a pair of turtlebots that can run simultaneously, and in order to do so, they need to run their nodes on different namespaces while both subscribing to a shared /map...

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How to Visualize the turtlebot path?

Hi there, I implemented a Spanning tree coverage algorithm for Turtlebot. Finally, I want to Visualize the path which is taken by the turtlebot using lines. So, what are the ways to visualize the...

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installing turtlebot for kinetic

Hello everyone ... I'm trying to install Turtlebot for kinetic [link text](http://wiki.ros.org/turtlebot/Tutorials/indigo/Turtlebot%20Installation) I changed all 'indigo' words to 'kinetic' after I...

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Multiple Machines connected to local network, not working

I've tried to troubleshoot this myself all day but I am out of ideas. I am trying to use ROS across multiple machines (Ubuntu 16.04, ROS kinetic) all connected to a wireless network run by a router...

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Unable to connect to master at http//***********/11311

hi. i am a beginner in this field. I have pi 3 and ubuntu 16.04 on my PC. I'm trying to launch roscore. When i give command sshpi@******** , it connect, roscor on my PC also run, but when i run...

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Turtlebot support in ROS2 Dashing

Hello! Do we have support for turtlebot2 or turtlebot3 For ROS2 dashing? I found ROS2 demos for bouncy but I don't think they will work for Dashing. I want to run teleoperator in ROS2 dashing, but...

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amcl not publishing map -> odom

After trying to simulate turtlebot navigation on STDR instead of Stage, I always run into missing transforms problems and navigation cant start. I ran view_frames and put a link to the resulting pdf....

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Full Coverage Path Planning on Unknown Map or Environment

Hello, I'm trying to develop a robot project on Turtlebot3. I'm using LiDAR to mapping and localization problems. There are some ros packages and open source projects about it. For mapping, I have test...

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GLib-GObject-CRITICAL **: 16:48:21.136: g_object_unref: assertion...

I'm trying to run this tutorial (melodic remote PC, kinetic turtlebot 2) rosrun image_view image_view image:=/camera/rgb/image_raw I confirmed via rostopic list and rostopic echo that there is data...

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Received comm state PREEMPTING when in simple state DONE with...

I have a turtlebot on a standard netbook running kinetic. I have a Ubuntu 18.04 server running melodic. They work fine together so far, as I can generate maps and autonomously navigate to points on the...

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OpenCR Board Can't Publish, Can Subscribe

Hello, Lately I've been trying to follow the tutorials at [the robotis manual](http://emanual.robotis.com/docs/en/platform/turtlebot3/slam/) to learn about ROS and Turtlebot3. I have a Turtlebot3...

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Not able to calculate orientation properly (odom)

I am new to robotics and ROS and am facing problem to calculate the pose of my robot. It is similar to turtlebot. I am able to get the linear distance properly, but it is incorrect in terms of...

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Bad maps produced by gmapping in simulation with feature-poor environments

I've found that in relatively feature-poor environments, e.g. a large rectangular room, the maps produced by gmapping can be very wrong. This is using a Turtlebot simulated in Gazebo, I'm not sure how...

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Error with kobuki_node minimal.launch

Hi, I just follow this guideline to install kobuki packages for a ROS Kinetic (with Ubuntu 16.04 Xenial):...

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How to use turtlebot on a custom build?

Turtlebot is normally either with the Kobuki or Create base. With its relative simplicity, versatility, and beginner-friendliness, it's an efficient way to learn ROS and advance in its programming....

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move_base publishes a cmd_vel with linear.z =2,and the other parameter is all 0

When i try to do a path planning with move_base, the output twist is changing quickly. Sometimes the output is correct, only the values of linear.x and angular.z, but after issuing a correct speed...

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Unable to move multiple turtlebots

Hello, I want to launch multiple turtlebots using Gazebo, and move each one from them separately with `cmd_vel_mux` topic. Namely, I would like to send message to topic `{robot_name)/cmd_vel_mux`....

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Kobuki "malformed subpayload"

I'm working with Turtlebot2 (with the Kobuki base) and running ROS Groovy. I'm intermittently seeing error messages like the ones below. Once these error messages start to appear, the robot becomes...

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Issue during 'roslaunch turtlebot_gazebo turtlebot_world.launch'

Hello everybody! I have Ubuntu 16.06 Xenial and ROS Kinetic installed. I want to launch gazebo turtlebot simulation with a command: roslaunch turtlebot_gazebo turtlebot_world.launch At first, I...

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How to install Turtlebot for Kinetic on Ubuntu 16.04 LTS

I have installed **ROS Kinetic** version on **Ubuntu 16.04 LTS** OS, but could not find a way to install the **Turtlebot** for Kinect Version of ROS. It would be a pleasure if someone helps me out in...

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