Warning after upgrade to Plesk Obsidian
Upgrade failed. To remove this notice, remove the file C:Program Files (x86)ParallelsPlesk/varupgradeplesk-upgrade-failure.flag from the server
The following error found in the Plesk installer log
Error: The installation of the package 'aspnetcore-3.1' failed with code 232. (upgrade: Upgrading Microsoft .NET Core 3.1 - Windows Server Hosting...)
Not all packages were installed.
Windows is not up to date.
Connect to the server via RDP
Install all latest Windows updates in Control Panel > System And Security > Windows Updates
Reboot the server
Install updates once again
Note: Once the update is finished successfully the file
C:Program Files (x86)ParallelsPleskvarupgradeplesk-upgrade-failure.flag might be safely removed if the warning is still there.