I just updated from 2.14.3 to 2.15.0 and I get the following error:
Variable “enableMeasurePiwikForSiteId” does not exist in “_piwikTag.twig” at line 3
Tried reapplying and the error persists. Cannot access the dashboard…
To fix this, I uploaded a fresh install, moved old install to backup folder and moved the config.ini.php to the new install. Now it is working. Two plugins were no longer compatible and needed to be unistalled after I was able to gain access again.
I resolved the problem when i have rename the folder “Zeitgeist” to “ZeitgeistOld”
Path : /plugins/Zeitgeist
Sincerely.