Fatal error: Uncaught ReflectionException: Class "Psr\SimpleCache\CacheInterface" does not exist in I:\www\frameworks\Symfony\doctrine\vendor\symfony\cache\Psr16Cache.php:22 Stack trace: #0 I:\www\frameworks\Symfony\doctrine\vendor\symfony\cache\Psr16Cache.php(22): ReflectionMethod->__construct('Psr\\SimpleCache...', 'get') #1 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\cache\Psr16Cache.php on line 22