Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\print-bk\vendor\phpunit\php-token-stream\tests\Token\ClassTest.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\print-bk\vendor\phpunit\php-token-stream\tests\Token\ClassTest.php on line 13