I did an automatic update and during installation I received the following errors:
There is an error. Please report the message and full backtrace in the Piwik forums.
Notice: Undefined property:
Piwik_CoreUpdater_Controller::$pathRootExtractedPiwik in
/homepages/3/d289365232/htdocs/piwik055/plugins/CoreUpdater/Controller.php on line 99
Backtrace --> #0 Piwik_ErrorHandler(8, Undefined property:
Piwik_CoreUpdater_Controller::
$pathRootExtractedPiwik, /homepages/3/d289365232/htdocs/piwik055/plugins/CoreUpdater/Controller.php, 99, Array ())
called at [/homepages/3/d289365232/htdocs/piwik055/plugins/CoreUpdater/Controller.php:99]#1
Piwik_CoreUpdater_Controller->oneClick_Unpack() called at
[/homepages/3/d289365232/htdocs/piwik055/plugins/CoreUpdater/Controller.php:63]#2
Piwik_CoreUpdater_Controller->oneClickUpdate()#3
call_user_func_array(Array ([0] => Piwik_CoreUpdater_Controller Object ([] => ,[] => Array (),[] => Array (),[] =>
Array (),[] => CoreUpdater,[] => ,[] => ,[] => 0,[] => Piwik_Site Object ([] => 0),
[newVersion] => 1.2.1,[pathPiwikZip] => /homepages/3/d289365232/htdocs/piwik055/tmp/latest/latest.zip),[1] =>
oneClickUpdate), Array ()) called at [/homepages/3/d289365232/htdocs/piwik055/core/FrontController.php:125]#4
Piwik_FrontController->dispatch() called at [/homepages/3/d289365232/htdocs/piwik055/index.php:57]
Notice: Undefined property: Piwik_CoreUpdater_Controller::$pathRootExtractedPiwik in /www/htdocs/NNNNNN/joomlasz/piwik/plugins/CoreUpdater/Controller.php on line 99
Backtrace --> #0 Piwik_ErrorHandler(8, Undefined property: Piwik_CoreUpdater_Controller::$pathRootExtractedPiwik, /www/htdocs/NNNNNN/joomlasz/piwik/plugins/CoreUpdater/Controller.php, 99, Array ()) called at [/www/htdocs/NNNNNN/joomlasz/piwik/plugins/CoreUpdater/Controller.php:99]#1 Piwik_CoreUpdater_Controller->oneClick_Unpack() called at [/www/htdocs/NNNNNN/joomlasz/piwik/plugins/CoreUpdater/Controller.php:63]#2 Piwik_CoreUpdater_Controller->oneClickUpdate() called at [(null):0]#3 call_user_func_array(Array ([0] => Piwik_CoreUpdater_Controller Object ([] => ,[] => Array (),[] => Array (),[] => Array (),[] => CoreUpdater,[] => ,[] => ,[] => 0,[] => Piwik_Site Object ([] => 0),[newVersion] => 1.2.1,[pathPiwikZip] => /www/htdocs/NNNNNN/joomlasz/piwik/tmp/latest/latest.zip),[1] => oneClickUpdate), Array ()) called at [/www/htdocs/NNNNNN/joomlasz/piwik/core/FrontController.php:125]#4 Piwik_FrontController->dispatch() called at [/www/htdocs/NNNNNN/joomlasz/piwik/index.php:57]
From preversion 1.2.0 , 1.2.1 update runs normally.