Fatal error: Uncaught Error: Class 'Assetic\Filter\BaseProcessFilter' not found in /home/cooplafobq/newplanning/vendor/kriswallsmith/assetic/src/Assetic/Filter/DartFilter.php:23 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/kriswallsmith/assetic/src/Assetic/Filter/DartFilter.php on line 23