Fatal error: Uncaught Error: Class 'Symfony\Bundle\SecurityBundle\Security\FirewallContext' not found in D:\workspaces\liZiPingBack\vendor\symfony\security-bundle\Security\LazyFirewallContext.php:26 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\security-bundle\Security\LazyFirewallContext.php on line 26