Symfony2-可捕获的致命错误：_construct（）必须是条令\ORM\EntityManager的实例

我正在构建“上次登录”功能。创建activitylistener并将侦听器定义为服务后，我得到一个错误

ContextErrorException:可捕获的致命错误：传递给Acme\SecurityBundle\EventListener\ActivityListener:的参数2:：\uu construct（）必须是条令\ORM\EntityManager的实例，给定条令\Bundle\DoctrineBundle\Registry的实例，在第350行的C:\xampp\htdocs\sinfoc\public\app\cache\dev\appDevDebugProjectContainer.php中调用，并在C:\xampp\htdocs\sinfoc\public\src\Acme\SecurityBundle\EventListener\ActivityListener.php第22行中定义

这是我的ActivityListener类

 public function __construct(SecurityContext $securityContext, EntityManager $entityManager)
        {
            $this->securityContext = $securityContext;
            $this->entityManager = $entityManager;
        }

这里是services.yml，其中监听器被定义为服务

services:
    activity_listener:
        class: Bnpp\SecurityBundle\EventListener\ActivityListener
        arguments: [@security.context, @doctrine.orm.entity_manager]
        tags:
        - { name: kernel.event_listener, event: kernel.controller, method: onCoreController }

下面是完整的ActivityListenerClass

 <?php

namespace Bnpp\SecurityBundle\EventListener;

use Doctrine\ORM\EntityManager;
//use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\SecurityContext;
use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
use Symfony\Component\HttpKernel\HttpKernel;
use Bnpp\SecurityBundle\Entity\User;
use Doctrine\Bundle\DoctrineBundle\Registry;


/**
 * Listener that updates the last activity of the authenticated user
 */

class ActivityListener

    {
    protected $securityContext;
    protected $entityManager;

    public function __construct(SecurityContext $securityContext, EntityManager $entityManager)
    {
        $this->securityContext = $securityContext;
        $this->entityManager = $entityManager;
    }



    /**
     * Update the user "lastActivity" on each request
     * @param FilterControllerEvent $event
     */


    public function onCoreController(FilterControllerEvent $event)
    {

        // Check that the current request is a "MASTER_REQUEST"
        // Ignore any sub-request
        if ($event->getRequestType() !== HttpKernel::MASTER_REQUEST) {
            return;
        }

        // Check token authentication availability
        if ($this->securityContext->getToken()) {
            $user = $this->securityContext->getToken()->getUser();


            if ( ($user instanceof User) && !($user->isActiveNow()) ) {
                $user->setLastActivity(new \DateTime('now'));
                $this->entityManager->flush($user);
            }
        }

    }

}

来自此错误的

ContextErrorException:可捕获的致命错误：传递给Acme\SecurityBundle\EventListener\ActivityListener:的参数2:：\uu construct（）必须是条令\ORM\EntityManager的实例，给定条令\Bundle\DoctrineBundle\Registry的实例，在第350行的C:\xampp\htdocs\sinfoc\public\app\cache\dev\appDevDebugProjectContainer.php中调用，并在C:\xampp\htdocs\sinfoc\public\src\Acme\SecurityBundle\EventListener\ActivityListener.php第22行中定义

你要提供

条令\ORM\EntityManager

但是你提供了

条令\Bundle\DoctrineBundle\Registry

在

你的论点应该是正确的

arguments:
         - "@security.context"
         - "@doctrine.orm.entity_manager"

您没有错过错误消息的一部分吗？你能在ActivityListener.php中显示类声明吗？作为Patt建议的继续，我没有使用FOSUserBundle。我在注入@doctor.orm.entity时出现此错误_manager@PéCé刚刚添加了整个错误消息和完整的类声明刷新您的缓存，看起来ActivityListener接收到的是“@doctor”，而不是“@doctor.orm.entity_manager”parameter@P塞西清除了缓存。但错误依然存在。
arguments:
         - "@security.context"
         - "@doctrine.orm.entity_manager"