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.

what programs cant be installed?

what is the error you get?

This situation happened over 4 months ago and I did not pay attention to what program was being installed.

The program being installed complained about Tixati interfering with the installation and the program immediately terminated.

No other warnings were given.

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

See this topic: https://forum.tixati.com/support/6067