Fatal error: Uncaught Error: Trait "Symfony\Component\Routing\Tests\Fixtures\Psr4Controllers\SubNamespace\SomeSharedImplementation" not found in /home/neondra/www/vendor/symfony/routing/Tests/Fixtures/Psr4Controllers/SubNamespace/MyControllerWithATrait.php:17 Stack trace: #0 {main} thrown in /home/neondra/www/vendor/symfony/routing/Tests/Fixtures/Psr4Controllers/SubNamespace/MyControllerWithATrait.php on line 17