Cannot upgrade 16.04 LTS to 18.04 LTS
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubuntu-release-upgrader (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu
If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-
Uname: Linux 4.17.2-
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Wed Aug 1 10:38:31 2018
InstallationDate: Installed on 2016-05-06 (816 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitec
SourcePackage: ubuntu-
UpgradeStatus: Upgraded to xenial on 2018-08-01 (0 days ago)
VarLogDistupgra
mtime.conffile.
You seem to have installed the cinnamon package on Ubuntu 13.10. Unfortunately, that package is not available yet for 14.04. To upgrade to Ubuntu 14.04 LTS you'll need to either wait for a fix for cinnamon to be available or uninstall the package and then upgrade.
[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]