Installation path is not accessible

Running a Kubuntu 20.04,

sudo chown -R $USER /usr/local/MATLAB/R2020b

does not solve the problem. Any ideas?

Toolbox: https://petercorke.com/toolboxes/robotics-toolbox/

[Rashed Mohammed]

Hi Mathias

I was not able to reproduce the issue you are experiencing. Below are the steps I've followed

1. Downloaded MATLAB zip from MathWorks website
2. Unzipped the downloaded file using "unzip -X -K matlab_R2020b_glnxa64.zip"
3. Installed MATLAB using "sudo ./install"
4. Downloaded Robotics Toolbox from the link you have mentioned. Opened MATLAB and double clicked on "RTB.mltbx" file which installed the Robotics Toolbox.

Please check if there are any steps you've done differently. Also try to uninstall and reinstall MATLAB and check if that solves the issue

[Mathias Mettauer]

This is strange.. Because it's acutally not the first time this happend to me. Two Years ago, I had the same problem with MATLAB and Ubuntu18.04. I solved it, with extracting all Package-files manually and added to the path. I could do it again like this, but I thought I am not the only one with this problem.

I installed like you proposed, only the unzip-flags I'm not sure -> I will test it now. After Installing, "/usr/local/MATLAB/R2020b" was root-owned, and I was not even able to change the path. With sudo ./matlab there are licencing-errors.

With

sudo chown -R $USER /usr/local/MATLAB/R2020b

I was now able to change the path, but confusing why I cannot install the mltbx-Package. You can install the Package without the "chown"-command?

[Mathias Mettauer]

Just reinstalled with "unzip -X -K matlab_R2020b_glnxa64.zip"

No improvement so far: Still the same error

Answer 1

[Rashed Mohammed]

Hi Mathias

As I was not able to reproduce the issue successfully, I suggest you to contact the author of the toolbox directly. If you feel this is an issue with your MATLAB installation, please reach out to MathWorks support team to help you resolve the issue https://www.mathworks.com/support/contact_us.html.