Fatal error: Uncaught Error: Interface 'SebastianBergmann\Diff\LongestCommonSubsequenceCalculator' not found in C:\xampp\htdocs\admin\vendor\sebastian\diff\src\MemoryEfficientLongestCommonSubsequenceCalculator.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\sebastian\diff\src\MemoryEfficientLongestCommonSubsequenceCalculator.php on line 20