SIMULINK ROS Permission denied

MATLAB System block 'Sine_publisher/Publish/SinkBlock' error occurred when invoking 'setupImpl' method of 'ros.slroscpp.internal.block.Publisher'. The error was thrown from ' '/usr/local/MATLAB/R2021b/toolbox/ros/slroscpp/+ros/+slroscpp/+internal/+block/Publisher.m' at line 142 '/usr/local/MATLAB/R2021b/toolbox/simulink/ui/studio/config/m/+SLStudio/StartPauseContinue.p' at line 0 '/usr/local/MATLAB/R2021b/toolbox/simulink/ui/studio/config/m/+SLStudio/ToolBars.p' at line 0'.

Caused by: Permission denied

[Jagadeesh Konakalla]

Hi Albin Biju,

Can you provide more information ? Please provide me the model and reproduction steps to reproduce the error.

Thanks,

Jagadeesh K.

[Mahshad Kadkhodazade]

I'm having the same error. I attached my model.

p.s.: first time, I initialized roscore on ubuntu, then on matlab. I got this error.

second time, I restarted my computer and this time initialized ros on matlab. Still the same error.

[Mahshad Kadkhodazade]

I solved it by going to matlab script and changing the folder directory to the folder where the python code of my publisher node exists. I got this idea from below link:

https://forums.ni.com/t5/LabVIEW/permission-denied-error-when-using-Matlab-script/td-p/3209865

p.s.: I got this error in Simulink of a ROS publisher block. I had defined a publisher node in ROS before running this simulink block.

Answer 1

[Jagadeesh Konakalla]

Based on the error message, you are running the model where you do not have write permissions. Please run the simulink model where you have write permissions.

Thanks,

Jagadeesh K