Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app/htdocs/lidia/vendor/symfony/routing/Tests/Generator/Dumper/PhpGeneratorDumperTest.php:21 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/vendor/symfony/routing/Tests/Generator/Dumper/PhpGeneratorDumperTest.php on line 21