Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/hagi/public_html/virtual/vendor/phar-io/version/tests/Unit/AbstractVersionConstraintTest.php:18 Stack trace: #0 {main} thrown in /home/hagi/public_html/virtual/vendor/phar-io/version/tests/Unit/AbstractVersionConstraintTest.php on line 18