Fatal error: Uncaught Error: Trait "PHPUnit\Architecture\Elements\Layer\LayerLeave" not found in C:\wamp64\houda\vendor\ta-tikoma\phpunit-architecture-test\src\Elements\Layer\Layer.php:16 Stack trace: #0 {main} thrown in C:\wamp64\houda\vendor\ta-tikoma\phpunit-architecture-test\src\Elements\Layer\Layer.php on line 16