Fatal error: Uncaught Error: Class "Silex\WebTestCase" not found in /home/ondemand/test.ondemandpro.net/php-docs-samples/appengine/flexible/memcache/test/LocalTest.php:22 Stack trace: #0 {main} thrown in /home/ondemand/test.ondemandpro.net/php-docs-samples/appengine/flexible/memcache/test/LocalTest.php on line 22