Fatal error: Uncaught Error: Class "PHPUnit\Framework\Constraint\Constraint" not found in /users/danielstruebig/www/familyhelper/vendor/laravel/framework/src/Illuminate/Testing/Constraints/SeeInHtml.php:8 Stack trace: #0 {main} thrown in /users/danielstruebig/www/familyhelper/vendor/laravel/framework/src/Illuminate/Testing/Constraints/SeeInHtml.php on line 8