Question 10.4.4 to 12.5.30 Upgrade Error

[Smtdmn]

Hello Friends;
I am getting this error when updating from Plesk 10.4.4 to 12.5.30;
Installation started in background

Determining the packages that need to be installed.
Error: A dependency problem is found: Microsoft SQL Server is no longer supported for Plesk internal database.,

Error Log;

[2017-02-26 21:11:40.564000] Installation started in background
[2017-02-26 21:11:40.566000] Determining the packages that need to be installed.
[2017-02-26 21:11:40.567000] Getting packages to installation list:
[2017-02-26 21:11:40.567000] Following packages will be installed: panel-12.5.30.noarch plesk-service-node-utilities-12.5.23962.noarch plesk-service-node-12.5.12333.noarch plesk-site-12.5.12333.noarch plesk-wp-cli-0.25.0.noarch panel-management-12.5.16907.noarch mysql-5.5.5200.noarch plesk-locale-base-en-US-12.5.20264.noarch plesk-12.5.16193.noarch plesk-zend-12.5.12333.noarch plesk-l10n-12.5.23749.noarch plesk-skins-12.5.21039.noarch plesk-engine-12.5.16002.noarch spaw-12.5.30.noarch panel-desktop-12.5.12333.noarch plesk-python-2.7.11002.noarch plesk-perl-5.20.101.noarch plesk-db-upgrader-12.5.16075.noarch awstats-7.4.0.noarch bind-9.10.4400.noarch spamassassin-3.4.100.noarch phpmyadmin-4.6.60.noarch mylittleadmin-3.8.2.noarch webmail-5.2.600.noarch drweb-6.0.0.noarch plesk-migration-manager-12.5.12333.noarch mysql51-server-configurator-12.1.5.noarch php5-5.2.1706.noarch php54-5.4.4502.noarch
[2017-02-26 21:11:40.568000] ----------------
[2017-02-26 21:11:40.593000] Add packages with unresolved deps to blacklist
[2017-02-26 21:11:40.593000] PkgManager: start resolving packages
[2017-02-26 21:11:40.594000] findNecessaryPackages(): start pass 0
[2017-02-26 21:11:40.594000] Find directly required packages for panel-12.5.30.noarch
[2017-02-26 21:11:40.594000] (regen conflicts cache)
[2017-02-26 21:11:40.596000] (regen obsoletes cache)
[2017-02-26 21:11:40.596000] Unresolved conflict: necessary package panel-12.5.30.noarch conflicts with plesk-with-mssql-10.4.4.x86_64. There is no upgrade solution or obsoleter for plesk-with-mssql, adding to removable list plesk-with-mssql
[2017-02-26 21:11:40.597000] Problem occured during searching conflicts for package panel-12.5.30.noarch
[2017-02-26 21:11:40.674000] Error: A dependency problem is found: Microsoft SQL Server is no longer supported for Plesk internal database.

How can I solve this?
Thanks.

 

[IgorG]

I would suggest you switch to MySQL database engine with Plesk reconfigurator first - https://support.plesk.com/hc/en-us/articles/213921345 and then perform upgrade.