Fatal error At updating to 2.12.0!


I recieved Fatal error when Updating to 2.12.0 !!!
please help

Fatal error: Call to undefined method Piwik\Updater::getComponentUpdates() in /home/mydomain/public_html/plugins/CoreUpdater/CoreUpdater.php on line 64
A fatal error occurred

Please contact the system administrator, or login to Piwik to learn more.

thank you

my problem with manual upload of piwik new version has been clear.