Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/blskysoftware/public_html/migration/vendor/setasign/fpdi/tests/functional/PdfParser/CrossReference/CrossReferenceTest.php:21 Stack trace: #0 {main} thrown in /home/blskysoftware/public_html/migration/vendor/setasign/fpdi/tests/functional/PdfParser/CrossReference/CrossReferenceTest.php on line 21