Upgraded from 16.04 to 17.04, cannot connect to libraries
16742
Ubuntu GNOME 17.04: wi-fi not working -- mac address keeps changing?
151605
upgrading from 15.10 to 16.04 apt not installed
34069
Why am I getting authentication errors for packages from an Ubuntu repository?
50810
No upgrade available for 19.04 from 18.10
107009
ubuntu 18.04 apt-get upgrade problem "redirection loop encountered."
11166
"Require Installation Of Untrusted Packages" while upgrading with the update manager
13970
Why am I not getting the Ubuntu 18.04 upgrade?
149279
Why can not upgrade texlive2016 to texlive2017 on windows
143747
How do I enable the "backports" repository?
95099
Could not find platform independent libraries
127895
403 Forbidden error in sudo apt-get upgrade ubuntu 17.4
153266
errors upgrading from 14.04 to 16.04 about Unknown Multi-Arch type for compiz, libkf5akonadisearch-bin packages
109006
GLIBCXX_3.4.20 not found, how to fix this error?
61719
Libpng12 needed for 17.10
9027
Ubuntu 16.04 Completely broken python3 + dpkg + apt-get!
11579
Broken dependencies after upgrade
404
Last upgrade crashes network manager (no internet connection, no applet)