Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app/htdocs/message_gateway/vendor/symfony/debug/Tests/Exception/FlattenExceptionTest.php:32
Stack trace:
#0 {main}
thrown in /home/app/htdocs/message_gateway/vendor/symfony/debug/Tests/Exception/FlattenExceptionTest.php on line 32