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.

[B]

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.

iam updating ubuntu 22.10 to 23.10 but iam getting this error

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubuntu-release-upgrader-core 1:22.04.19
ProcVersionSignature: Ubuntu 5.15.0-1057.64-realtime 5.15.143
Uname: Linux 5.15.0-1057-realtime x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CrashReports:
 640:1000:125:110182:2024-03-28 18:36:41.698055911 +0530:2024-03-28 18:36:41.734053781 +0530:/var/crash/_usr_bin_software-properties-gtk.1000.crash
 644:1000:125:0:2024-03-28 18:36:41.698055911 +0530:2024-03-28 18:36:41.698055911 +0530:/var/crash/_usr_bin_software-properties-gtk.1000.upload
 600:120:125:37:2024-03-28 18:36:43.801938642 +0530:2024-03-28 18:36:43.801938642 +0530:/var/crash/_usr_bin_software-properties-gtk.1000.uploaded
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 28 19:56:28 2024
InstallationDate: Installed on 2024-02-19 (38 days ago)
InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to jammy on 2024-03-28 (0 days ago)
VarLogDistupgradeTermlog:

mtime.conffile..etc.update-manager.release-upgrades: 2024-03-20T19:11:54.064474