Just tried the 4.7 upgrade and found it was giving a fatal error when I tried to acces either the event dashboard ( /civicrm/event?reset=1 ) and Manage Events ( /civicrm/event/manage?reset=1 ).

Fatal error: Can't inherit abstract function Civi\ActionSchedule\MappingInterface::createQuery() (previously declared abstract in Civi\ActionSchedule\Mapping) in C:\xampp\htdocs\switch\sites\all\modules\civicrm\Civi\ActionSchedule\Mapping.php on line 64

I can access the other CiviEvent pages (e.g. add new event, add participant, etc), and none of the other components seem affected.

Using Drupal 7.41, and upgraded to 4.7 from 4.6.10. I am running PHP 5.3.5, which the upgrade warned against but only for future versions?

  • 1
    Not sure if it relates, but if so it is likely your PHP version: bugs.php.net/bug.php?id=66818 Jan 28, 2016 at 16:15
  • 1
    Yeah, it does seem to be the php version that's causing problems - updating php resolved it. I may flag up that the upgrade warning message isn't clear enough.
    – liblogger
    Jan 29, 2016 at 14:18
  • Great. Then I'll make my comment an "answer". :) Jan 29, 2016 at 15:43

1 Answer 1


Not sure if it relates, but if so it is likely your PHP version:

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