PHP fatal error in OPS APP\observers\events\Usage

[asmecher]

Describe the bug When building the test dataset with OPS main, I see the following error:

PHP Fatal error:  Uncaught Error: Call to undefined method APP\observers\events\Usage::getCanonicalUrl() in /home/asmecher/git/ops-main/lib/pkp/classes/observers/traits/UsageEvent.php:70
Stack trace:
#0 /home/asmecher/git/ops-main/classes/observers/events/Usage.php(31): APP\observers\events\Usage->traitConstruct()
#1 /home/asmecher/git/ops-main/pages/index/IndexHandler.php(99): APP\observers\events\Usage->__construct()
#2 [internal function]: APP\pages\index\IndexHandler->index()
#3 /home/asmecher/git/ops-main/lib/pkp/classes/core/PKPRouter.php(465): call_user_func()
#4 /home/asmecher/git/ops-main/lib/pkp/classes/core/PKPPageRouter.php(307): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest()
#5 /home/asmecher/git/ops-main/lib/pkp/classes/core/Dispatcher.php(163): PKP\core\PKPPageRouter->route()
#6 /home/asmecher/git/ops-main/lib/pkp/classes/core/PKPApplication.php(379): PKP\core\Dispatcher->dispatch()
#7 /home/asmecher/git/ops-main/index.php(70): PKP\core\PKPApplication->execute()
#8 {main}
  thrown in /home/asmecher/git/ops-main/lib/pkp/classes/observers/traits/UsageEvent.php on line 70

This doesn't appear to break the test builds, but does suggest that events are not getting recorded.

To Reproduce Build the test dataset on OMP main.

[Vitaliy-1]

I see the same error in OJS too

[bozana]

PR: https://github.com/pkp/ops/pull/324