Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/trairtil/public_html/vendor/symfony/error-handler/Tests/ErrorEnhancer/UndefinedMethodErrorEnhancerTest.php:18 Stack trace: #0 {main} thrown in /home/trairtil/public_html/vendor/symfony/error-handler/Tests/ErrorEnhancer/UndefinedMethodErrorEnhancerTest.php on line 18