Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\finance-ll\vendor\org_heigl\ghostscript\tests\GhostscriptTest.php:43 Stack trace: #0 {main} thrown in C:\xampp\htdocs\finance-ll\vendor\org_heigl\ghostscript\tests\GhostscriptTest.php on line 43