Fatal error: Uncaught Error: Class 'SebastianBergmann\Diff\Output\AbstractChunkOutputBuilder' not found in D:\xampp\htdocs\psp\backend\vendor\sebastian\diff\src\Output\UnifiedDiffOutputBuilder.php:27 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\sebastian\diff\src\Output\UnifiedDiffOutputBuilder.php on line 27