Warning: Undefined variable $class_data in I:\www\picman\vendor\symfony\maker-bundle\templates\controller\Controller.tpl.php on line 3

Fatal error: Uncaught Error: Call to a member function getNamespace() on null in I:\www\picman\vendor\symfony\maker-bundle\templates\controller\Controller.tpl.php:3 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\maker-bundle\templates\controller\Controller.tpl.php on line 3