Problem Launch Matlab in Ubuntu 18.04

Hello Everyone! I'm in trouble with Matlab in Ubuntu 18.04. I have a student license that should allow me to install the software in several device, isn't it?

Once i have finish the installation process, i supposed it worked, i try to launch Matlab from Terminal but i get this message:

gianmarco@gianmarco-HP-255-G5-Notebook-PC:~$ matlab

License checkout failed.

License Manager Error -9

This error may occur when:

-The hostid of this computer does not match the hostid in the license file.

-A Designated Computer installation is in use by another user.

If no other user is currently running this program, you may need to activate.

Troubleshoot this issue by visiting:

https://www.mathworks.com/support/lme/R2019a/9

Diagnostic Information:

Feature: MATLAB

License path: /home/gianmarco/.matlab/R2019a_licenses:/usr/local/MATLAB/R2019a/licenses/license.dat:/usr/local/MAT

LAB/R2019a/licenses/license.lic:/usr/local/MATLAB/R2019a/licenses/license_gianmarco-HP-255-G5-Notebo

ok-PC_40576534_R2019a.lic

Licensing error: -9,57.

How can i fix it? Thank you!

Answer 1

[Walter Roberson]

Student licenses are restricted to activation on one system at a time, with a very small number of "transfers" permitted per year. Student licenses are not eligible for activation on two computers at the same time.

However, that is not the issue for you. You have one of two possible issues:

1. Because of the way that Linux associates MAC addresses with interfaces, when you activated the license, you might have activated against a different interface than is currently active. You might need to use udev rules to force persistent association of a MAC with a particular interface name; Or
2. You might have asked to activate the software against a different username than you are currently executing with. Associating with a username is nearly the last step in activation; there is a box for the username to be activated against. The username you give there must match the result that the user would get by executing whoami at the shell level. In particular, the username should seldom be root .