Fatal error: Uncaught Error: Class 'PHPUnit_Framework_Constraint' not found in /home/app/htdocs/message_gateway/vendor/laravel/framework/src/Illuminate/Foundation/Testing/Constraints/HasInDatabase.php:8 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/laravel/framework/src/Illuminate/Foundation/Testing/Constraints/HasInDatabase.php on line 8