when upgrade ubuntu ti 22.04

[Sabri mehani]

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

This was likely caused by:
* Unofficial software packages not provided by Ubuntu
Please use the tool 'ppa-purge' from the ppa-purge
package to remove software from a Launchpad PPA and
try the upgrade again.

If none of this applies, then please report this bug using the
command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If
you want to investigate this yourself the log files in
'/var/log/dist-upgrade' will contain details about the upgrade.
Specifically, look at 'main.log' and 'apt.log'.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.41
ProcVersionSignature: Ubuntu 5.15.0-91.101~20.04.1-generic 5.15.131
Uname: Linux 5.15.0-91-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Tue Dec 19 14:47:30 2023
InstallationDate: Installed on 2022-06-17 (549 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2023-12-19 (0 days ago)

[Sabri mehani (mehani03)]

i try to update from Ubuntu 20.04.6 LTS to 22.04
i have this problem

[Maik (maik-adamietz)]

Do you have PPAs installed? If so it's not a bug, all you have to do is disableing the PPAs or purge them as shown in the output.