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Jagadeesh Konakalla

Last seen: 2 days ago Active since 2015

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  • 6 Month Streak
  • Knowledgeable Level 3
  • Revival Level 1
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Answered
how to receive ROS Topics in parallel workers?
https://www.mathworks.com/matlabcentral/answers/119559-why-is-the-ros-subscriber-callback-in-matlab-not-triggered-when-messages-...

3 months ago | 0

Answered
ROS Toolbox issue after R2020b Update 5: Unable to resolve the name ros.internal.utilities.getMessageTypesWithCppKeyword.
The issue looks like resolved with the following commands, clear classes; rehash path; rehash toolbox; rehash pathreset; rehash...

3 months ago | 0

Answered
ROS2 Simulink Toolbox not subscribing to Python Publisher
Hi Usama Faisal, If you are still having the issue, please reach out to us through the Mathworks Technical Support Team. Than...

7 months ago | 0

Answered
rosinit in virtual machine on azure: invalid python executable
I solved this problem in the next day. I found the path to the installed python on ubuntu and set it in matlab. [1] https://st...

8 months ago | 0

Answered
How to extract the data from bus Selector in Simulink
Hi Shivam, Please take a look at examples shipped with ROS Toolbox on how to access the ROS Messages in Simulink. https://www....

9 months ago | 0

Answered
Ros2subscriber/receive Subscriber did not receive any messages and timed out.
It turns out that the issue is that default ROS subscribers are incompatible with PX4 publishers due to their different QoS sett...

10 months ago | 0

| accepted

Answered
MATLAB-Turtlebot3 Network Connection Issue
Hi Shivam, Can you confirm what is the address of ROS Master IP in the Turtlebot 3 ? The MATLAB rosinit is connected to the 19...

10 months ago | 0

Answered
Matlab R2022b and R2023a installation did not contain CMake
Can you please install MATLAB Coder and try the rosgenmsg and ros2genmsg workflows ?

10 months ago | 0

| accepted

Answered
Error in code generation using ROS Toolbox: "Code generation information file does not exist. "
Hi, In the Simulink model configuration, the check box for the Generate GPU code is selected. Can you generate the code by unse...

10 months ago | 0

| accepted

Answered
receiving from a subscriber in ROS is taking indefinite time resulting in a fail
Hi Omar, Which verion of MATLAB that you are using ? Are you able to run the example provided by Mathworks without any issue ?...

11 months ago | 0

Answered
Matlab rosinit error:Could not install the required Python packages.
https://de.mathworks.com/matlabcentral/answers/789104-could-not-create-python-virtual-environment#answer_682155

12 months ago | 0

Answered
CMake not found when using rosgenmsg on Windows
The fix for this issue is addressed in the update release of R2021b. Please use the latest update release of R2021b

12 months ago | 0

Answered
SIMULINK ROS Permission denied
Based on the error message, you are running the model where you do not have write permissions. Please run the simulink model whe...

12 months ago | 0

Answered
Error rosgenmsg (line 480) : error build log
Hi, When I analyzed error, the error is related to redefinition error. I found that one of the message file has issue. I see th...

12 months ago | 0

| accepted

Answered
ROS logger isn't showing the topics
It is difficult for me to debug without the simulink model. I appreciate you to contact us through MathWorks Technical support T...

12 months ago | 0

Answered
How to deploy simulink ROS node which has Acados S function?
Hi Jai Prakash, Please reach out to MathWorks Technical support with more details on your request. Thanks, Jagadeesh K

12 months ago | 0

Answered
Every value from ROS Subscriber put to zero
Please see the Accepted answer in the post https://www.mathworks.com/matlabcentral/answers/119559-why-is-the-ros-subscriber-ca...

1 year ago | 0

Answered
rosinit error in 2022b on Linux
The error is confusing and our team is working to fix this issue. Can you please install 3.9.13 and try it? It will work. Thank...

1 year ago | 0

Answered
rosgenmsg fails with encoding error
Looks issue is with the environment as mentioned by Franz.

1 year ago | 0

Answered
Operating path tracking simulink model of differential drive robot on turtlebot3
Hi Shivam, Please take a look at the following example. Path Following with Obstacle Avoidance in Simulink - MATLAB & Simulin...

1 year ago | 0

Answered
simulink ros2 generated node rate
It seem that this issue will be solved with the new updates of 2022b, especially the loop rate conrtol with ROS2 Time object. ...

1 year ago | 0

Answered
How to set the path to the Python executable using ROS Toolbox preferences
Hi Ryo, The error message is confusing. Team is working on to imporve the error message. Can you please use the version 3.9.13...

1 year ago | 1

| accepted

Answered
Question about the python 3.9 in r2022b
Hi, If possible, Can you please install the 3.9.13 version of python and provide the path in the above UI ? thanks, Jagad...

1 year ago | 0

Answered
ros2node() freezes execution
It is observed that with FastDDS as RMW middlwware, the domain ID 0 does not work on few machines. The workaround for now is to ...

1 year ago | 0

Answered
I keep dropping connection to a ROs device
The "connection to process with exchange ... was lost" error message generally means that the ROS node has crashed. It runs in a...

1 year ago | 0

| accepted

Answered
RTPS_TRANSPORT_SHM Error
This issue is observed when trying to communicate MATLAB R2022a ROS Toolbox (uses Fast-DDS 2.1.1) with other version of FastDDS ...

1 year ago | 0

| accepted

Answered
ros can't receive the message of 'nav_msgs/Path'
Hi Yi Liu, The issue is that nav_msg/Path is a variable length nested ROS message. In your example, Looks like that written M c...

1 year ago | 0

| accepted

Answered
How do i publish lanelines data as visualisation marker array message for RVIZ?
Hi Amrita, Please take a look at the following example which explains how to access variable size arrays, nested messages in Si...

2 years ago | 1

Answered
Deploying ROS2 Node with Custom Messages
Hi Michael, You have build the custom messages using ros2genmsg are visible only by MATLAB on your host machine. You need to bu...

2 years ago | 0

| accepted

Answered
getTransform from ROS2 bag
Hi Antonie, Unfortunately, we do not have easy workaround to provide you. We are working on adding getTransofromations capabi...

2 years ago | 1

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