Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\orus_\vendor\spipu\html2pdf\Tests\CrossVersionCompatibility\PhpUnit9\TextParserTestCase.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\orus_\vendor\spipu\html2pdf\Tests\CrossVersionCompatibility\PhpUnit9\TextParserTestCase.php on line 18