Fatal error: Uncaught Error: Interface 'Contao\ManagerPlugin\Dependency\DependentPluginInterface' not found in /home/benjamincb/demos/acdg-site/vendor/contao/manager-plugin/tests/Fixtures/PluginLoader/FooDependendPlugin.php:17 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/contao/manager-plugin/tests/Fixtures/PluginLoader/FooDependendPlugin.php on line 17