Through VirtualBox for many Virtual Machines for Ubuntu Server - for each one an upgrade was done from 20.04 to 22.04. The apt update and apt upgrade commands work fine. But just few days ago I did realize that if I execute the following command to all the Virtual Machines:

VBoxClient --version

arises the following error message

VBoxClient: error while loading shared libraries: libXt.so.6: cannot open shared object file: No such file or directory

was reinstalled VirtualBox Guest Additions and the situation remains.

Question

• How fix this situation?

Extra Question

• Why this situation appeared? Is due the OS' upgrade?

UPDATE

In the post:

• can't load shared library libXt.so.6 - although it can be located

is indicated as solution execute the command

sudo apt install libxt6:i386

It shows

E: Unable to locate package libxt6:i386

Thus was executed

sudo apt install libxt6

And was installed.

But sadly even if the VM is restarted, the error remains