Fatal error: Uncaught Error: Class 'SebastianBergmann\Diff\LongestCommonSubsequenceTest' not found in C:\xampp\htdocs\amik7d\vendor\sebastian\diff\tests\MemoryEfficientImplementationTest.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\amik7d\vendor\sebastian\diff\tests\MemoryEfficientImplementationTest.php on line 16