Fatal error: Uncaught Error: Class "SebastianBergmann\Diff\LongestCommonSubsequenceTest" not found in /home2/yiikharazmisabt/public_html/yii2-app/vendor/sebastian/diff/tests/MemoryEfficientImplementationTest.php:16 Stack trace: #0 {main} thrown in /home2/yiikharazmisabt/public_html/yii2-app/vendor/sebastian/diff/tests/MemoryEfficientImplementationTest.php on line 16