As you may know the Canonical αποφάσισε να υιοθετήσει το GNOME Ubuntu Software Center σαν προεπιλεγμένο γραφικό διαχειριστή πακέτων στο operating system Ubuntu LTS 16.04 Xenial Xerus, αντικαθιστώντας το παλιό Ubuntu Software Center. Η Canonical μετονόμασε επίσης την εφαρμογή του GNOME σε Ubuntu Software.
But the new application did not allow installation of .deb packages downloaded from the Web.
The application for those who do not know allows an easy way to install packages, since just double-clicking on the .deb installation is needed.
Of course, there was always the option of installing .deb packages from third-party manufacturers over the line orders (eg sudo dpkg -i package_name.deb) or using some other graphical package installer, such as Gdebi, which can be installed from the software repositories.
However, Canonical has released a patched version of GNOME Software in the main software repositories for users who have installed the stable version of the operating system.
So you can update the new Ubuntu Software which allows installing debs from third parties.