In order to install some programs in Ubuntu 18.04, Tixati has to be removed.
I really like the design and workings of Tixati, except for the situation of blocking
the installation of some programs.
Because of this situation I have removed Tixati from my system.
An Update ....
After I had installed Tixati into Ubuntu 18.04.2, I tried installing VLC and I received the following message:
Unable to install VLC:
Error while installing package: Installed tixati package post-installation script subprocess returned error exit status 127.
The workaround is: To uninstall Tixati .... Install VLC .... reinstall Tixati