Upgrade to 16.04. Broken dependencies and impossibility to resolve them in usual ways
15203
Mysql-common cannot be uninstalled
12534
14.04 --> 16.04 failed; apt (>= 1.0.1ubuntu2.13)' is not installed
8526
Upgrading from Ubuntu 16.04 to 18.04 broke the system completely!
65099
Unable to install any updates through update manager/apt-get upgrade
2280
Package system is broken. How to fix it?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
31892
New "Ubuntu Software" not working (16.04)
73173
How to Fix Broken Packages?
76165
Unmet dependencies: not configured yet
145164
Dependency issue with support-library-v4
22615
How to upgrade shared library without crash?
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
144507
No facility exists in Update Manager to upgrade to a new version, why?
51350
While updating the ubuntu 16.04 does not have a Release file Error
98511
16.04 Cannot install anything from Ubuntu Software center
1632
How do I fix a "Failed to download package files" error?
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?