Questions tagged [tutorial]
The tutorial tag has no usage guidance.
150
questions
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6
views
How to check if the specified NAV2 behavior tree is running correctly?
I am following the navigation2_dynamic_point_following tutorial on ROS 2 Humble. I have executed successfully all the part, but I can not understand if the follow_point bt is running...
To launch the ...
0
votes
0
answers
18
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Question about Serial communication of Vex V5 brain
I'm currently developing serial communication for the Vex V5 brain. In the process, I came across the solution you provided on GitHub, which can be found here: https://github.com/ros-drivers/rosserial/...
0
votes
1
answer
24
views
ROS Tutorial issue
I've been learning about ROS using this url ⇒(http://wiki.ros.org/ROS/Tutorials).
And doing so I have a issue with this chapter ⇒(http://wiki.ros.org/ROS/Tutorials/reading%20msgs%20from%20a%20bag%...
- 1
0
votes
1
answer
23
views
ROS1 dependency in nav2 tutorial?
I'm trying to discover Nav2 stack.
I'd like to do a mission/follow-waypoint thing in my own simulation.
I started with the "Getting Started" -> "Running the Example" after ...
- 31
0
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0
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7
views
#Windows# Issue with tf2_ros::MessageFilter Tutorial on Windows
I am a beginner with ROS 2 and I was following the Using stamped datatypes with tf2_ros::MessageFilter tutorial on a Windows machine. I have encountered an issue in the 3 Run section. When I run ...
- 1
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0
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29
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#Win10/Iron Cannot get message of "INFO custom_minimal_param_node: Hello earth!" after using the launch file
guys!
I am learning about 《Using parameters in a class (Python) — ROS 2 Documentation: Iron documentation》.
For the section of [3.2 Change via a launch file], after running the
...
- 1
0
votes
1
answer
107
views
colcon build freeze a Raspberry Pi
Thanks all for reading and helping.
I'm attempting to install and use Humble on a fresh 22.04 install on a Raspberry Pi reTerminal (CM4) with 4G RAM. Ubuntu 22.04.1 LTS (GNU/Linux 5.15.0-1015-raspi ...
solo
0
votes
1
answer
2
views
Adding Tutorial link automatically to a wiki page
Hi,
I've created a tutorial for the ros_canopen package : http://wiki.ros.org/ros_canopen.
I made the tutorial according to this guideline : http://wiki.ros.org/WritingTutorials.
The tutorial page is ...
Cyril Jourdan
0
votes
1
answer
10
views
Teensy tutorial not working
Hi! I'm having problems with the Teensy tutorial. I've already worked through the linux tutorial with no problems.
Everything builds and loads properly, but when I start the ros2 serial agent, it ...
Barty
0
votes
1
answer
2
views
ros2 topic echo is not visible as node named _ros2cli_<id>
Hi,
I was following https://docs.ros.org/en/galactic/Tutorials/Topics/Understanding-ROS2-Topics.html . I called command (I can see msg in terminal, so subscription is working):
...
barginho
0
votes
1
answer
11
views
How to print out multiple responses from service
Hello, I'm currently trying to create a service which can send multiple responses. I edited the tutorial service ( http://wiki.ros.org/ROS/Tutorials/WritingServiceClient%28python%29 ) to:
...
Verismoto
0
votes
1
answer
9
views
Unknown CMake command "add_rostest"
I am following the tutorial on overlaying on catkin workspaces and run catkin as $ catkin_make -DPYTHON_EXECUTABLE=/usr/bin/python3 but I get
...
pra-dan
0
votes
1
answer
1
view
rosout symbol lookup error
HI all,
I am introducing to ROS and I am trying to follow the beginner tutorials.
I've got an error when launching roscore:
...
albert ciurana
0
votes
1
answer
1
view
UsingRosEd beginner tutorial defaults to Spanish?
Hello,
It appears that the beginner tutorial for ROS Editors found at the following link has been changed to Spanish.
http://wiki.ros.org/ROS/Tutorials/UsingRosEd
Where can I find an English version ...
David M
0
votes
1
answer
2
views
ros1_bridge does not support sensor_msgs/msg/Image
Hi,
I wanted to transport sensors_msgs/msg/Image from a ros2(eloquent) node to a ros1(melodic) node so
I did the following steps in this exact same order
Installed melodic from debian packages based ...
tlaci
0
votes
1
answer
14
views
ros2 interface command dosen't work
Hello, I'm fairly new to ros so I might be missing something obvious.
During the ros2 tutorial I need to type the command 'ros2 interface', you can see in the image below that I get an error message ...
0
votes
1
answer
1
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Turtlebot3 blob recognition
Hello everyone! Is something here who knows a site where can I learn about blob recognition for turtlebot3? Or for robots which uses Compressed images data type? I ...
oovidiustr
0
votes
1
answer
13
views
Create Dockerfile for ros2 package : ament_cmake error
Hello,
I try to use docker to develop ros2 packages.
In this context, I use the minimal_publisher package from https://github.com/ros2/examples as example which has the structure:
...
JanOr
0
votes
1
answer
1
view
Flexbe unabel to reache action_server
I'currently trying to work with Flexbe and trying to include an action but I keep getting the following error:
...
schokkobaer
0
votes
1
answer
1
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MoveIt Tutorial - All Links at the same place!
Hello ROS-Community,
I am currently working my way through the MoveIt-GettingStarted Tutorial (https://ros-planning.github.io/moveit_tutorials/doc/getting_started/getting_started.html).
I do have ...
cluue
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votes
1
answer
3
views
How naming work in ros?
In tutorial Using rqt_console and roslaunch, the two turtlesim node are named as "sim" in the launch file. But inside the mimic block, they are referred as "turtle1". The name tag ...
phsamuel
0
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1
answer
1
view
What are the minimum requirements for releasing a package into the ROS distro for the first time
I am editing the question to more accurately reflect what I am trying to understand. I want to know what what the minimum requirements are for a package to be eligible for being incorporated into the ...
ghendricks
0
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1
answer
2
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Innok Heros simulation with ROS Kinetic and Gazebo
Hi,
does everyone know, how to simulate the Innok Heros with ROS Kinetic.
The tutorial is just for Indigo. http://wiki.ros.org/innok_heros_gazebo/Tutorials/Simulating%20Innok%20Heros
What are the ...
ich4913
0
votes
1
answer
7
views
sensor_msgs - Can't build tutorial project
I am trying to pass images as messages in a simple ROS project. I'm a complete beginner in ROS and robotics. The tutorial I'm trying to follow is here:
http://wiki.ros.org/cv_bridge/Tutorials/...
dharmaforone
0
votes
1
answer
1
view
Beginner Tutorial Procedure
If possible I'd like for experienced users to post their suggestions whether this is the correct way, and explain the commands commented as 'black magic' please.
Putting together the initial bit:
1. ...
finch1
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votes
1
answer
1
view
Talker Listener Tutorial. Listener no show
Hi, I feel more confident with CMake and linux after spending time practising. So I tried again, these steps:
http://wiki.ros.org/catkin/Tutorials/create_a_workspace
http://wiki.ros.org/catkin/...
finch1
0
votes
1
answer
1
view
rosmsg tutoral error
I was working through the tutorials on rosmsg and encountered this error. I went back and followed the instructions on the previous tutorials, but cannot seem to find the problem. At the end it says ...
ddimassa
0
votes
2
answers
1
view
rviz doesn't show any shape
Hi all,
I'm trying to build my first URDF model, following this tutorial:
http://wiki.ros.org/urdf/Tutorials/Building%20a%20Visual%20Robot%20Model%20with%20URDF%20from%20Scratch
Booth replicating what'...
Maik993
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votes
1
answer
6
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The many origins of URDF
There are a lot of origins in URDF, making them bit confusing for me.
Before I decided to ask this question, I've done research on the forum and wiki post, including these posts: URDF and frames of ...
alienmon
0
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1
answer
2
views
0
votes
1
answer
5
views
Understanding xmlns: what are the links linked to?
I have read similar question here ,but It still hasn't answered my confusions.
I refer to this tutorial
here's the snipper:
...
alienmon
0
votes
1
answer
1
view
MoveIt Tutorial rviz does not start
Hi guys,
I try to move the robot Sawyer from rethinkrobotics to a given point. My base program for this is here.
Because it doesn't work well just typing in coordinates I want to try to simulate the ...
Robot Nr.5
0
votes
1
answer
2
views
Unable to show messages
I've seen similar questions, but they do not solve my problem.
http://answers.ros.org/question/187071/cannot-load-message-class-for-are-your-messages-built/
I am using Ubuntu 12.04 and ROS Indigo.
If ...
TobiasE
0
votes
1
answer
10
views
rosrun tf2_tools not found
In the very first tutorial of tf2, we run the command rosrun tf2_tools view_frames.py. I tried this on two different systems running Ubuntu 16.04 and ROS kinetic. ...
- 361
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1
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1
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Transport Image tutorial issue: subscriber doesn't show image
Hello everyone,
I tried to do the tutorial " Running the Simple Image Publisher and Subscriber with Different Transports " image_transport/Tutorials
but I encountered an issue.
When I run ...
Hysis
0
votes
1
answer
1
view
The result of Dynamic_reconfigure tutorial not update
I have studied dynamic reconfigure to use it with my project. I had followed the tutorial until http://wiki.ros.org/dynamic_reconfigure/Tutorials/UsingTheDynamicReconfigurePythonClient. However, after ...
p.beerzzzzz
0
votes
1
answer
1
view
how to create a the launch file xml
i follow the tutorials to 2.3 The launch file .the tutorials just tell us to :"Now let's create a launch file called turtlemimic.launch and paste the following: "but it doesn't tell us how ...
zpzsky
0
votes
1
answer
9
views
dynamic_reconfigure tutorial problems
Hi everyone i am stilll new here so please assist me.
So i have been trying to make a gui to change the modes(manual, teleoperation) of an vehicle from a control station.
I initially tried to do qt ...
Azhar
0
votes
1
answer
3
views
Offline version of tutorial
Would it be possible to have an offline version of the tutorial? The website is really slow thesedays.
A local version of http://wiki.ros.org/
or at least of http://wiki.ros.org/ROS/Tutorials
Thanks
...
Wyatt
0
votes
1
answer
4
views
package not found - ROS PCL Tutorial
Hey, I am new to ROS and want to work with pointclouds. I did exactly the ROS PCL tutorial as written in http://wiki.ros.org/pcl/Tutorials
CMakeLists in ~/catkin_ws/src/my_pcl_tutorial:
...
anonymous28046
0
votes
1
answer
9
views
Getting started with robots from ROS wiki
Hello, I´m trying to start a project simulating a robot from robots wiki but I´m not exactly sure how to program these robots.
I followed some tutorials but they all used a launch file from demo ...
cflavs
0
votes
1
answer
14
views
[MoveIt!] How to Use the Python Move Group Interface
Hi,
I want to use MoveIt! for pathfinding for a simple manipulator arm.
The MoveIt! Setup Assistant and Rviz Integration tutorials were very helpful for the first usage of MoveIt! with the manipulator ...
F4bich
0
votes
1
answer
1
view
Impossible to make a plugin with the tutorial
Hi,
I am following the 'Writing and Using a Simple Plugin' tutorial (here) but I can't compile my code. I am on Ubuntu 14.04 and I use ROS indigo. I use C++.
When I use catkin_make the terminal ...
Piero-31
0
votes
1
answer
4
views
[PCL_tutorial] No tf data.Fixed Frame camera_depth_frame does not exist
I followed this tutorial 4.1 (http://wiki.ros.org/pcl/Tutorials) and ran these with kinect v2
$ rosrun my_pcl_tutorial example input:=/narrow_stereo_textured/points2
$ rosrun rviz rviz
After that I ...
student_ja
0
votes
1
answer
1
view
beginner: creating existing package
Hello,
I want to modify hector_slam. So, for a rearrangeable hector_slam I think i should create and build or install hector_slam in catkin_ws right?
I looked the tutorials and got confused so much. I ...
bsk
0
votes
1
answer
3
views
Tutorials-Markers: Do not overwrite last marker
I try to have mulitple markers via several publishes and then let them fade away if their lifetime is over. Unfortune if I publish a new marker the old marker disappears before its lifetime is up. I ...
user23fj239
0
votes
1
answer
2
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ros urdf tutorial on osx
I did some of the turtle sim tutorials and now I'm trying to do an urdf tutorial but I'm running into some issues. What's going on here?
...
jacksonkr_
0
votes
1
answer
1
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[ERROR] IMU_node (help-me)
Hello guys,
I'm trying to use the imu_node , but by following the tutorial contained herein : http://wiki.ros.org/microstrain_3dmgx2_imu/Tutorials/UsingTheIMUNode , I encounter the following message:
<...
rafael_palma
0
votes
1
answer
1
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Wiki tutorials indexing with FullSearchWithDescriptionsCS macro
I m creating documentation and tutorials for siemens_cp1616 package (GSoC project). Currently I have 7 tutorial pages that were created in almost random order. I use FullSearchWithDescriptionsCS macro ...
Frantisek.Durovsky
0
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1
answer
2
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