Fatal error: Uncaught Error: Interface "SebastianBergmann\Diff\LongestCommonSubsequenceCalculator" not found in I:\www\frameworks\Symfony\translation\vendor\sebastian\diff\src\TimeEfficientLongestCommonSubsequenceCalculator.php:17 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\translation\vendor\sebastian\diff\src\TimeEfficientLongestCommonSubsequenceCalculator.php on line 17