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How to access my webpage with rosbridge server?

I would like to create an application for control my robot through Internet. I am using raspberry Pi 4 and ROS1 noetic under ubuntu. The wifi connection is the same between raspberry and my laptop ...
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1 answer
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ROS Service (client inside server node)

Is it possible to put a client node inside a server node when making service? Iam trying to make a Service and as far as I know, all the functions are stored in the server node and inside the client ...
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1 answer
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Why ROS2 rclc_parameter_set_int() has value parameter as int64_t while rclc_parameter_get_int() has the same parameter as int type?

Hello guys, I just dealt with these two functions while I was learning how to implement a Parameter Server with Micro-ROS and ROS2 Galactic. I confess it bugged my mind, so we are talking about the ...
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1 answer
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action client stuck waiting on server

I've been trying to write an action file (cpp) using the Fibonacci example as a guide but so far it's just getting stuck on starting the server and i can't quite see why. ...
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1 answer
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rqt_graph not showing all active nodes

I've been following through the simple examples for actions and I'm not sure how to change the setting to get rqt_graph to show nodes a level "deeper". The action is questions is an exact ...
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ros_control combination with actionlib

Hi there, This is probably a noob question, but after spending some hours trying to figure this out and asking google, I decided to ask it nonetheless. I am building an interface to a robot that does ...
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1 answer
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Yaml file loaded in the parameter server but disappears after

Hello everyone, I have an issue with my parameters, when I launched my launch file where I load the yaml file, I can see that parameters from the yaml file are being loaded to the parameter server, ...
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1 answer
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creating a Rosjava Service Client and Server end in failure

Hi everybody, I tried to create a rosjava service following the instruction listed in: http://wiki.ros.org/rosjava_build_tools/Tutorials/indigo/UsingServices Sadly I end up with following error at the ...
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1 answer
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Problem declaring a service server within a class

Hi everyone, I am a beginner in c++ especially with classes, I am trying to declare a service server within a class but it doesn't work, I have already had the same problem declaring a subscriber ...
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1 answer
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What is the difference between publisher-subscriber vs. server-client?

I just completed the beginner tutorial and I do not understand the difference between the publisher-subscriber (PS) way of passing messages and the server-client (SC) way of passing messages. To me ...
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1 answer
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can call back based simple action client subscribe to other topics?

Is it possible for a call back based simple action client to subscribe to other topics? I want the client to subscribe to /topicA that publishes sensor_msg::JointState and pass the name, velocity, ...
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Bug in ros::NodeHandle::searchParam()?

Hi all, according to my understanding of searchParam(), the second if condition in the following code snippet should never be ...
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1 answer
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Web-server-video remote access

Hi, I'm trying to access the web-video-server. I got it to work on localhost, the url in the doc works and everything is fine. However I can't access it remotely ( on a different laptop on the same ...
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1 answer
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rosbridge online

Background: I am currently working on a project that wants to remotely receive video stream and send control commands to my ROS robot. I have it working perfectly in localhost by using rosbridge. It ...
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1 answer
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Get 403 Forbidden when downloading indigo packages from package.ros.org

Recently I got error '403 Forbidden' messages when I use '$ apt-get install' to install most indigo packages, when I visit the website ...
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1 answer
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How to connect ROS to ABB controller

Dear all, I am trying to connect my Ubuntu with ROS Hydro to ABB controller that is using IRB120 robotic arm, but I am unable to understand how to make it connect. I am looking at this . But I am ...
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1 answer
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dynamic reconfigure callback happens automatically when a node is launched without rqt client

I am using dynamic_reconfigure in my node to adjust some params dynamically. I found that the first callback for dynamic reconfigure happens when the node is launched, specifically when I define the ...
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1 answer
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ros::param::getCached will not update and gives errors

Can't seem to make full use of ros::param::getCached....while I CAN retrieve a value that is set on rosmaster, I get this error continuously: ...
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1 answer
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May I run Parameter Server separated?

Hi everybody: Does there any way to separate Parameter Server from roscore, and run alone! Originally posted by Damo on ROS Answers with karma: 7 on 2016-10-14 Post score: 0 Original comments ...
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ros: kinetic: web_video_server

Hi my maintainers, is there a reason why web_video_server is not available at ros-kinetic default distribution ? I like this nice tool for my robots frontview cam. Cheers Christian Originally posted ...
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1 answer
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Running roscore and nodes in separate computers

Due to limited storage space, I would like to run my roscore and certain important packages in one system (A Jetson TX1 running ...
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1 answer
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issues launching Gazebo

I am getting this response in the terminal when attempting to run Gazebo. Does anyone have any idea what is going on and how I may resolve the problem. ...
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2 answers
46 views

Easiest way to implement HTTP server that can send ROS messages

I have a web interface that sends http requests to a server. When this server receives a request it needs to send messages through a ROS topic. Since this server will be very simple I thought that the ...
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1 answer
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Problems with communication between Roboguide and RVIZ

Hello everyone. I'm working con ROS-Industrial and with the FANUC m20ia Robot I'm try running the ROS-Industrial programs on my FANUC simulate called RoboGuide, I follow the instructions that appear ...
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1 answer
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coffeebot webserver open problems

Hi! I am currently using the LAMP stack as explained in the http://learn.turtlebot.com/2015/02/01/20/ tutorial. The goal is to order a coffee (robot driving to specific location) through a chrome ...
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1 answer
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Tutorials: Writing Simple Server Client Bug?

Hello, so I'm doing the tutorials and I got a problem in this one. Where do you get this file? #include "beginner_tutorials/AddTwoInts.h"? I know that you have to go back look at creating ...
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1 answer
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Examining Simple Service and Client Tutorial

When going through the first part of the tutorial of the subject title, this is what happens in terminal: warhost@warhost-Latitude-E6400:~/catkin_ws$ rosrun beginner_tutorials add_two_ints_server [...
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1 answer
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Exclude topic from namespace

Hello, I have a Turtlebot running the navigation stack and a workstation that runs the corresponding map-server. The amcl node is launched in a namespace so that all published and subscribed topics ...
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1 answer
115 views

roscore fails to start

I have just recently moved. My project worked before, but I cannot even run roscore now. This is the error I have received. Does anyone know a fix? ...
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1 answer
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ROS Installations: Desktop, Server, Cloud

Hi yah all! I am new to this wonderful world of ROS and setting up a small ROS lab to do some experimentation. My question is this, does ROS Indigo Igloo only run on the desktop version of Ubuntu 14....
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1 answer
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compile twice to see custom message

Hello all ! I have a package with a server that use a custom message for a service. The thing is that I need to compile twice for it to see the message for the server. Lets say I suppress my build and ...
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1 answer
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Cannot locate node in package

How to run a server? I cloned the package dmp and saved it in my sandbox. when I roslaunch the dmp node, I get the error ...
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1 answer
51 views

Running RViZ through X forwarding on headless machine

Hello, is there possibility to run RViZ remotely on headless machine using X forwarding (ssh -X)? The problem is that remote machine (server) doesn't have graphic card with OpenGL support so, there is ...
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1 answer
22 views

Re-stream video capture

I currently have a robot running Ubuntu with ROS installed and an Asus Xtion Pro Live attached. What I'm trying to do is to capture the video and push it to a server, and then have the server re-...
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1 answer
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ROS Beginner Tutorials: Examining the Simple Service and Client (python) - need some help

Hey guys, I'm following the ROS Tutorials and, using the Python language, I'm currently having some issues trying to solve the item Examining the Simple Service and Client item ([link text](http: // ...
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1 answer
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ROS Beginner Tutorials: Writing a Simple Service and Client (python) - need some help

Hi guys, I'm following the ROS Tutorials and currently doing the item Examining the Simple Service and Client using the Python language ((http:// www.ros.org/wiki/ROS/Tutorials/ExaminingServiceClient))...
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2 answers
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map server problems

Hello I wonted to load a map from a bag file using the map server but I could not. First I played the bag file during running the master with roscore. After finishind the play of the bag file in new ...
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1 answer
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Wiki Internal Server Error

Hello, I just created a new page on the wiki: ros.org/wiki/Robots/AllegroHand I am getting an internal server error. Could you please restore this page and let me know what I may have done to cause ...
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1 answer
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Internal Server Error ROS Wiki

I'm getting a Internal Server Error when editing/try to access the wiki-page: http://ros.org/wiki/amigo_gazebo . I guess it's the same problem as:http://answers.ros.org/question/12315/getting-an-...
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1 answer
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ROS Server Client communication

Hello. I want to use ROS as two parts application. Server and Client. I got a robotic arm that should run on server and i could be controlled by client over network. Is that posible? I mean is there ...
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1 answer
6 views

Running Gazebo on a Server in ROS

Can the ROS version of Gazebo be split so it's server functions (gzserver) be run on a server in the same way as the full version of Gazebo can? Is this possible? Originally posted by PeterMilani on ...
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2 answers
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Refresh map on navigation

Hello I'm using the navigation_stack for make a robot move autonomously. So far I've managed to make the robot move and avoid obstacles, but only if I use a reference map. With this reference map, the ...
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1 answer
56 views

rosparam: Can't set parameters on Master, via launch file

(ROS Fuerte) I've setup and tested 2 PCs to talk across a network. There's a client node and a master node. Both can ping each other via hostname. I'm starting the client using a launch file that ...
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1 answer
14 views

ROS Network through firewall

Hi there, I have to say I'm a newbie working with networks. I have the following problem: I have a remote machine where my roscore and some other nodes are running. I need to run the nodes in my ...
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1 answer
2 views

Creating own service (not copying from some other package)

Hi! So I am new to ROS and I went through most of the beginner tutorials. I am at the point where I am learning how to create my own services. In the ROS tutorial on the link below, they tell you how ...
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1 answer
8 views

Service Server refuses to advertise my service/function?

Hello I'm writing a server whose job is to offer a 6DOF pose estimation, but I'm having problems advertising it as it seems that I'm giving it a function with too manny argument, even tough I'm ...
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1 answer
3 views

Handling SIGINT

Hi, I was trying to write a node acting as a tcp server, my first try (to see if evrythin worked) is the following ...
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1 answer
3 views

error message when running "Quadrotor indoor SLAM demo"

Hi, When I tried to run the quadrotor demo here , I got the following error message: ...
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2 answers
3 views

Can a node act as a server and a publisher?

Hello all, I have a piece of hardware (LabJack UE9) I am using to interface with a diesel generator for data acquisition as well as for some simple controls (turning it on and off), and I would like ...
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1 answer
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Server and ROS communication

Hi, Which package is suitable or how shall I implement inside roscpp or in any language to set up a connection between a tcpip server and the ROS system. I would like to transport a message, which is ...
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