Fatal error: Uncaught Error: Class "MediaWiki\Extension\Notifications\Mapper\AbstractMapper" not found in /home/floten1/q.tenbergen.ca/extensions/Echo/tests/phpunit/Mapper/EchoAbstractMapperStub.php:10 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/Echo/tests/phpunit/Mapper/EchoAbstractMapperStub.php on line 10