Fatal error: Uncaught Error: Class 'Illuminate\Pipeline\Pipeline' not found in /opt/lampp/htdocs/kuesioner/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php:18 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/kuesioner/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php on line 18