Fatal error: Uncaught Error: Class 'Silex\Application' not found in C:\xampp\htdocs\sitewebanader\alertesethiques\vendor\behat\mink-browserkit-driver\tests\app.php:5 Stack trace: #0 {main} thrown in C:\xampp\htdocs\sitewebanader\alertesethiques\vendor\behat\mink-browserkit-driver\tests\app.php on line 5