Questions tagged [errors]

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Laser Scan Fails When Robot Starts Running

I'm running the ROS navigation stack. Everything works well, the robot localises, the paths are generated and cmd_vel works, except for one key issue. Once a goal is set, the path is made and the ...
Pesala Welangalle's user avatar
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0 answers
12 views

Gazebo visual issues, first time startup

I am following this tutorial to install gazebo: Video by Articulated Robotics Since I am running ros2 humble, I did sudo apt install ros-humble-gazebo-ros-pkgs} ...
HeyyyItsMike's user avatar
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0 answers
8 views

Turtlebot3 not loading in gazebo (ROS2 Galactic, Gazebo-11)

I am trying to load a Turtlebot 3 waffle in the house world, get its laser scan data in Rviz2 and then navigate to 3 checkpoints with the help of rviz2 after mapping the world. The commands I am using ...
sdhar04's user avatar
  • 11
0 votes
1 answer
22 views

Rviz2 Moveit Error In The Tutorial

I am using Ubuntu 22.04.4 LTS and ROS2 Humble. I am trying to build Moveit for some robotic applications but I could not do Build and Run. https://moveit.picknik.ai/main/doc/tutorials/...
EngineerandDeveloper's user avatar
0 votes
0 answers
40 views

Iron & Windows: Error code 3221226505 when running ROS 2 node with ros2 run

I am trying implementing the tutorial of "Using quality-of-service settings for lossy networks". When I try to run the showimage node in the image_tools package using the ros2 run command: <...
Eric's user avatar
  • 1
0 votes
1 answer
51 views

Adding joint plugins cause ODE internal error

I designed a model in Fusion and exported it to to SDF using SDFusion script. Till now everything seems to work fine, the 2 of the 4 joints did not cause any problems and worked ok, but when I add ...
Vacoff's user avatar
  • 11
0 votes
0 answers
18 views

Library index error in ROS Foxy

The error is shown below: ...
Athira GS's user avatar
0 votes
0 answers
13 views

Fault Tolerant Action Server Client Design?

My ROS 2 Humble Create3 robot Dock action client sometimes does not receive a dock action result (callback sometimes not called). The robot log shows the action goal succeeded, and my client node ...
Cyclical Obsessive's user avatar
0 votes
0 answers
97 views

moveit2 not planning: Unable to sample any valid states for goal tree

I am relatively new to ros and moveit. I am working in humble on an m1 mac but using a vm to run ubuntu jammy. I've followed the moveit tutorials and successfully got the panda arm moving to a ...
tuna_pasta's user avatar
0 votes
1 answer
60 views

Error: link 'boggiesidelegl_1' is not unique

I am using ubuntu 22.04 ROS2 HUMBLE i used https://github.com/dheena2k2/fusion2urdf-ros2/tree/master to create a urdf for my project. when i try running ros2 launch mars_description display.launch.py, ...
aman noufel's user avatar
0 votes
0 answers
30 views

An error occurred while running the simulation and the simulation was terminated

I created a Stewart Platform Simulink model, but I am getting the following error. This especially happens when you connect the outputs from the mux to the 4th and 5th legs in the general block ...
Ali Bozkurt's user avatar
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0 answers
39 views

Why am i getting a PEAK_RETURN_CODE_NOT_FOUND Error when trying to start a camera using ROS and SSH?

I am working on a project where I want to control sensors and a camera connected to an Ubuntu 20.04 system. To avoid using the terminal on the Ubuntu system directly, I want to use buttons connected ...
Thilo Engel's user avatar
0 votes
1 answer
121 views

Unable to install ROS2 on Ubuntu 22.04

I'm trying to install ROS2 on Ubuntu 22.04, for that I use this doc. I noticed some errors on this doc like in the "Installing and initializing rosdep" part, instead of ...
Picot's user avatar
  • 1
0 votes
0 answers
26 views

ros2 on qnx # error unknown multiarch location for pyconfig.h

while building ros2 on qnx, i am getting the below error: ...
Syed Afroz's user avatar
0 votes
2 answers
623 views

Trying to install ROS2 on Ubuntu Jammy, but I'm running into some errors

I have ran into an error whilst trying to install ROS2, not sure what to do. Some background: I'm running ubuntu version 22.04.3 using a virtual machine. I'm trying to install ROS 2 Iron (...
Error100's user avatar
0 votes
0 answers
79 views

MoveIt2 problem to install moveit_configs_utils package during binary downloading

I'm attempting to install MoveIt2 binary on the ROS2 Humble platform, but I'm having trouble installing the moveit_configs_utils package. Before that, I tried to install MoveitIt2 from the source ...
Tomáš Karel's user avatar
0 votes
0 answers
72 views

Gazebo installation problem on Windows

I'm trying to install Gazebo on Windows 10 following these steps: https://gazebosim.org/docs/harmonic/install_windows_src I have completed all the steps in the "Install dependencies" section ...
George Karafotias's user avatar
0 votes
1 answer
153 views

display.launch.py --share on ROS 2 tutorials is not working - Windows 11

I have installed ROS 2 (Humble Hawksbill) on windows 11 and trying to follow URDF tutorial. When I run the folllwing command: ...
Ros wizard's user avatar
0 votes
1 answer
439 views

fatal error: rclcpp/rclcpp.hpp: No such file or directory

I already build some others packages without errors, but now i'm trying to build a library now and i have this error: fatal error: rclcpp/rclcpp.hpp: No such file or directory 10 | #include "...
Donca's user avatar
  • 11
0 votes
2 answers
385 views

cannot launch node of type [gmapping/slam_gmapping]: Cannot locate node of type [slam_gmapping] in package [gmapping]

...
kostas T's user avatar
1 vote
1 answer
109 views

{spawn_model-5} process has died

...
keke kurwa's user avatar
0 votes
1 answer
235 views

Gazebo-Garden : [GUI] [Err] [VisualizeLidar.cc:251] Lidar pointer is not set

When running gz-sim/examples/worlds/visualize_lidar.sdf (link), I get an error message ...
TanguyTheOtter's user avatar
-1 votes
1 answer
66 views

Value Error: module PIL Image is not a class [duplicate]

This is the node I've written in rospy. It opens a socket connection and then converts the received image to < ndarray > and then < sensormsg.Image > and publishes it ...
SM5's user avatar
  • 9
0 votes
0 answers
111 views

How to fix ValueError: module PIL Image is not a class?

This is the node I've written in rospy. It opens a socket connection and then converts the received image to < ndarray > and then < sensormsg.Image > and publishes it ...
SM5's user avatar
  • 9
0 votes
2 answers
234 views

catkin_make not creating a catkin workspace for ROS through Robostack (Conda) environment

I've recently been encountering an issue when trying to create a working catkin workspace for ROS through RoboStack. Robostack is utilized to create a working ROS environment installed in Conda. When ...
omar7439's user avatar
0 votes
1 answer
390 views

colcon build exception

I am getting this error when using the colcon build command. I don't know how this occurred and everything was working really fine. ...
Jishnu's user avatar
  • 201
4 votes
4 answers
2k views

SetuptoolsDeprecationWarning in ros2 Humble

I was trying to follow this tutorial in the official documentation of ros2 Humble for Integrating launch files into ROS 2 packages and ran in to the below given error after doing trying to perform a ...
Jishnu's user avatar
  • 201
2 votes
3 answers
2k views

VS Code C/C++ extension Issue with ros program header file

Recently, when I was trying to compile a ROS programm written in C++ (with C/C++ extension installed in VSCode) I ran in to a problem with the header files included in the program (...
Jishnu's user avatar
  • 201
1 vote
0 answers
137 views

PID controller error calculation when the setpoint and the process variable both grow over time

Suppose I have a robot which can perform some work and be rewarded with a point 50-70% of the time. I want a different number of points to be collected every hour of the day. This is modelled using a ...
Lee A.'s user avatar
  • 11
2 votes
3 answers
1k views

Spdlog linker error with ROS2 packages

Good afternoon! We are a company that has a pretty big robotic framework and we are currently working in a transition into ROS2. We are first creating the structure that all of our packages will ...
Jorge Playán's user avatar
1 vote
2 answers
705 views

roslaunch exit code 2 error

I am implementing a simple roslaunch file but I am getting an exit code 2 status I have pasted the exact log below any idea what would cause this and how I can rectify it. ...
NOVA1323's user avatar
0 votes
1 answer
212 views

Unable to figure out the source for the bad_alloc error

I am getting a bad_alloc error when I try to use the costmap_2d::Costmap2DROS::getRobotPose function inside the ...
skpro19's user avatar
  • 314
1 vote
1 answer
297 views

Caculate/Specify the covariance matrix for a omniwheel robot

I have an omnidirectional robot (x, y and rotation around z), which I would like to use the SLAM-algorithm from ROS. But the odometry from the robot has a drift, which makes some error. To improve the ...
Marki2112's user avatar
0 votes
2 answers
2k views

/odom topics not matching ERROR

I have an existing ROS workspace which was built in C++. I am trying to implement a node built by The Construct in python which reads distance travelled from the ...
neerbasu's user avatar
4 votes
2 answers
492 views

Calculating Error of Arm Manipulator

How can we calculate the error position of arm manipulator? Let's say we have a Transformation Matrix: $$\begin{bmatrix} R_{00} & R_{01} & R_{02} & x\\ R_{10} & R_{11} & R_{12} &...
Michael Iskandar's user avatar
2 votes
1 answer
61 views

How does structural/installation errors have to be modelled in a gyroscope IMU?

I have the model for a gyroscope from an IMU given by $$ \omega_{meas} = (I-S)\omega_{true} + \beta + v $$ $S$ is the scaling and misalignment of the sensor, which I understand is a parameter I get ...
Luis's user avatar
  • 163
0 votes
1 answer
69 views

State of the art trajectory for fine precision robots

Which kind of trajectory would one use for a fine precision robot? I know trapezoidal and cubic trajectories, but errors get very high when stopping at every configuration and when speeding up to ...
kassio's user avatar
  • 35
2 votes
1 answer
2k views

Process noise and Measurement noise in Kalman filter

I am doing the robot localisation project. Now I stuck on the effect of measurement and process noise in Kalman filtering. Could you please explain what impacts they have while estimating the position ...
Nekromant's user avatar
6 votes
3 answers
8k views

Camera selection for long range stereo vision system (up to 100 meters)

I want to implement a real-time stereo vision system for long range (up to 100m) depth estimation. I know that there are some general considerations as described in this SOV post. I have seen some ...
Mr. Nobody's user avatar
3 votes
0 answers
782 views

real-time stereo vision system for long range (up to 100m) depth estimation

I want to implement a FPGA-based real-time stereo vision system for long range (up to 100m) depth estimation. Also, I want to use two ip cameras in the system. I have calculated depth error using the ...
Mr. Nobody's user avatar
1 vote
1 answer
513 views

Illegal position data with Mitsubishi Melfa RV-2F-Q robotic arm

I have a project where I have to move a Mitsubishi Melfa RV-2F-Q robot to a position/orientation from an external source, so there are no pre-defined points available. The problem I keep running into ...
icguy's user avatar
  • 111
0 votes
2 answers
154 views

Is there any error analysis of Irobot Create 2?

I am curious about the travelling distance/turning angle accuracy of Irobot Create 2. E.g., if the program let Create 2 go forward for 10 m, will Create 2 go forward exactly 10 m? What is the ...
Yubing's user avatar
  • 1
1 vote
1 answer
1k views

How to compute the error function in graph SLAM for 3D poses?

Given a pose $x_i = (t_i, q_i)$ with translation vector $t_i$ and rotation quaternion $q_i$ and a transform between poses $x_i$ and $x_j$ as $z_{ij} = (t_{ij}, q_{ij})$ I want to compute the error ...
morph's user avatar
  • 197
12 votes
1 answer
4k views

Ambiguous definition of Error-State (Indirect) Kalman Filter

I am confused by what precisely the term "Indirect Kalman Filter" or "Error-State Kalman Filter" means. The most plausible definition I found is in Maybeck's book [1]: As the name indicates, in ...
sebsch's user avatar
  • 659
4 votes
2 answers
2k views

the uncertainty of initializing new landmark in EKF-SLAM

In EKF-SLAM (based-feature map) once the robot senses a new landmark, it is augmented to state vector. As a result, the size of the state vector and the covariance matrix are expanded. My question is ...
CroCo's user avatar
  • 2,453
3 votes
1 answer
322 views

Dynamic tracking precision of UR5/10

I am willing to use a universal robot arm (UR10) in a path following mode. i.e. I have a desired trajectory for the robot's effector and I would like the effector to follow it as close as possible. ...
arennuit's user avatar
  • 609
2 votes
3 answers
268 views

Gears in Autodesk Inventor are looking weird

I use Autodesk inventor professional 2014. I design my gears using the design accelerator. However, whenever I create gear trains, parts of certain gears become transparent. This seems completely ...
Sonarbuddy's user avatar
5 votes
2 answers
3k views

Accelerometer calibration - how to get cross-axis sensitivities

I've already asked a related question (accelerometer bias removal) here on robotics and got a bit better results on corrected accelerometer output. To get even better results I found the calibration ...
c0dehunter's user avatar
3 votes
2 answers
4k views

Accelerometer bias removal

I found a good explanation on how to remove accelerometer bias (when on flat table only one axis should show values, the other two should be 0). I've calculated S and B factors (page 3): Record $...
c0dehunter's user avatar
-2 votes
2 answers
359 views

What are some common mistakes that robots make? [closed]

Is there a taxonomy of errors that are common in robotics? Things that come to mind but I don't have names for are: Getting stuck in a stable infinite loop Going into an unstable feedback loop (A ...
Ian Danforth's user avatar