how to install toolbox on ubuntu?

I want to install the communication toolbox on ubuntu18.04, I use the command "chmod -R o+w ./R2019" change write access. then I open matlab gui to install the toolbox,but the fellowing error accours.please point out my problems,thanks a lot.

Answer 1

[Shubh Sahu]

To download the toolbox in ubuntu follow these steps:

Open command window ->Go to the directory where MATLAB is installed -> then type sudo ./install -> check the tool box you want to download -> next -> next -> finish.

Here is the link you can refer to: https://www.mathworks.com/help/install/ug/install-and-activate-without-an-internet-connection.html?s_tid=srctitle

[peter adolph]

I have change the group and user from root to my name of all matlab related file, and it work. anyway ,thank you

[Pratul Ranjan]

It's the simplest solution...worked for me!!

chown -R <username>:<username> /usr/local/MATLAB/R***

Answer 2

[Matko Matic]

For me just adding sudo to your command worked perfectly --> "sudo chmod -R o+w ./R2019"

[ALVARO]

works for me too with Ubuntu 22 and R2022b. Thank you for the suggestion