Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\phar-io\manifest\tests\xml\ComponentElementTest.php:5 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\phar-io\manifest\tests\xml\ComponentElementTest.php on line 5