Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app/htdocs/message_gateway/vendor/symfony/routing/Tests/Loader/YamlFileLoaderTest.php:19
Stack trace:
#0 {main}
thrown in /home/app/htdocs/message_gateway/vendor/symfony/routing/Tests/Loader/YamlFileLoaderTest.php on line 19