Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\Application\www\E-Tracking\vendor\psy\psysh\test\TabCompletion\AutoCompleterTest.php:21 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\psy\psysh\test\TabCompletion\AutoCompleterTest.php on line 21