Error when using tool GetMoreApps

Hey:

I have a student licence for Matlab R2021a (Ubuntu) and I want to install the library Parallel Computing however when I try to add a new app using GetMoreApps in matlab i get the following error:

Error using matlab.internal.cef.webwindow/errorOnInValidWindow (line 1530)

Webwindow is not valid. It was closed by user or the process was terminated.

Error in matlab.internal.cef.webwindow/bringToFront (line 644)

obj.errorOnInValidWindow()

Error in matlab.internal.webwindow/bringToFront (line 223)

bringToFront(obj.impl)

Error in matlab.internal.addons.AddOnsWindow/bringToFront (line 71)

obj.webwindow.bringToFront();

Error in matlab.internal.addons.Explorer/show (line 52)

obj.addOnsWindowInstance.bringToFront();

Error in matlab.internal.addons.launchers.showExplorer (line 130)

matlab.internal.addons.Explorer.getInstance.show(navigationData);

Thanks!

[Yannick Novacek]

I have the same problem.

[Walter Roberson]

Does your firewall permit matlab to create tcp connections?