Fatal error: Uncaught Error: Class 'Symfony\Component\Filesystem\Tests\FilesystemTestCase' not found in /var/www/html/cake3-migration/vendor/symfony/filesystem/Tests/FilesystemTest.php:19
Stack trace:
#0 {main}
  thrown in /var/www/html/cake3-migration/vendor/symfony/filesystem/Tests/FilesystemTest.php on line 19