SonataAdminBundle无法导入资源

Question

尝试进入管理信息中心时出现以下错误：

  

无法导入资源“/ var / www / autoportal / app / config /。”从   “/var/www/autoportal/app/config/routing.yml”。 （自动加载器预计   要在文件中定义的“App \ AdminBundle \ Admin \ AutoAdmin”类   “/var/www/autoportal/src/App/AdminBundle/Admin/AutoAdmin.php”。该   找到了文件，但是班级不在其中，班级名称或   命名空间可能有一个错字。）

我的管理员课程：

namespace App\AdminBundle\Admin;

use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Form\FormMapper;

class AutoAdmin extends Admin
{
    protected function configureFormFields(FormMapper $formMapper)
    {
        $formMapper
            ->add('name')
            ->add('enabled', null, array('required' => false))
        ;
    }

    protected function configureDatagridFilters(DatagridMapper $datagridMapper)
    {
        $datagridMapper
            ->add('name')
            ->add('posts')
        ;
    }

    protected function configureListFields(ListMapper $listMapper)
    {
        $listMapper
            ->addIdentifier('name')
            ->add('slug')
            ->add('enabled')
        ;
    }
}

服务配置：

services:
    app_admin.auto:
        class: App\AdminBundle\Admin\AutoAdmin
        tags:
            - { name: sonata.admin, manager_type: orm, group: posts, label: "Auto" }
        arguments:
            - ~
            - 'App\AutoPortalBundle\Entity\Auto'
            - 'SonataAdminBundle:CRUD'
        calls:
            - [ setTranslationDomain, [AppAdminBundle]]

路由文件：

app_auto_portal_controller:
    resource: "@AppAutoPortalBundle/Controller"
    type:     annotation

app_auto_portal:
    resource: "@AppAutoPortalBundle/Resources/config/routing.yml"
    prefix:   /

login:
    pattern:   /login
    defaults:  { _controller: AppAutoPortalBundle:Security:login }
login_check:
    pattern:   /login_check

admin:
    resource: '@SonataAdminBundle/Resources/config/routing/sonata_admin.xml'
    prefix: /admin

_sonata_admin:
    resource: .
    type: sonata_admin
    prefix: /admin