..it seems what PackageKit is horribly old in Ubuntu 16.04 (2 years old...)
packagekit 0.8.17-4ubuntu6~gcc5.4ubuntu1
Latest version is: 1.1.0 from 2016-02-12
Perhaps an update is in order?
https://www.freedesktop.org/software/PackageKit/pk-download.html
..it seems what PackageKit is horribly old in Ubuntu 16.04 (2 years old...)
packagekit 0.8.17- 4ubuntu6~ gcc5.4ubuntu1
Latest version is: 1.1.0 from 2016-02-12
Perhaps an update is in order?
https:/ /www.freedeskto p.org/software/ PackageKit/ pk-download. html