Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app3/public_html/service/vendor/phpdocumentor/reflection-docblock/tests/unit/Exception/PcreExceptionTest.php:20 Stack trace: #0 {main} thrown in /home/app3/public_html/service/vendor/phpdocumentor/reflection-docblock/tests/unit/Exception/PcreExceptionTest.php on line 20