如何在现有的Symfony 2项目上使用Sonata Admin设置Symfony-cmf

我一直在尝试为我的项目设置带有Symfony-CMF的Sonata Admin，当我尝试添加菜单项时，我遇到了一些错误。

如何解决这个问题？

错误：

类'Symfony''Cmf''Bundle''MenuBundle''Document''MenuItem'在链配置的命名空间Doctrine''ODM''PHPCR''Document 中找不到

原木：

DEBUG - Notified event "kernel.request" to listener "Symfony'Component'HttpKernel'EventListener'ProfilerListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Bundle'FrameworkBundle'EventListener'SessionListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Component'HttpKernel'EventListener'RouterListener::onKernelRequest". 
DEBUG - SET NAMES UTF8 
DEBUG - SELECT t0.id AS id1, t0.name AS name2, t0.billing_address AS billing_address3, t0.contact_name AS contact_name4, t0.contact_email_address AS contact_email_address5, t0.contact_phone_number AS contact_phone_number6 FROM client t0 
DEBUG - SELECT t0.id AS id1, t0.name AS name2, t0.billing_address AS billing_address3, t0.contact_name AS contact_name4, t0.contact_email_address AS contact_email_address5, t0.contact_phone_number AS contact_phone_number6 FROM client t0 
INFO - Matched route "admin_bundle_menu_menuitem_create" (parameters: "_controller": "Sonata'AdminBundle'Controller'CRUDController::createAction", "_sonata_admin": "symfony_cmf_menu.admin", "_sonata_name": "admin_bundle_menu_menuitem_create", "_route": "admin_bundle_menu_menuitem_create") 
DEBUG - Notified event "kernel.request" to listener "Symfony'Component'HttpKernel'EventListener'LocaleListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Component'Security'Http'Firewall::onKernelRequest". 
DEBUG - Read SecurityContext from the session 
DEBUG - Reloading user from user provider. 
DEBUG - SELECT t1.username AS username2, t1.username_canonical AS username_canonical3, t1.email AS email4, t1.email_canonical AS email_canonical5, t1.enabled AS enabled6, t1.salt AS salt7, t1.password AS password8, t1.last_login AS last_login9, t1.locked AS locked10, t1.expired AS expired11, t1.expires_at AS expires_at12, t1.confirmation_token AS confirmation_token13, t1.password_requested_at AS password_requested_at14, t1.roles AS roles15, t1.credentials_expired AS credentials_expired16, t1.credentials_expire_at AS credentials_expire_at17, t1.id AS id18, t1.fb_uid AS fb_uid19, t1.tw_uid AS tw_uid20, t0.categorySelectFlag AS categorySelectFlag21, t0.paypalName AS paypalName22, t1.type FROM seeder t0 INNER JOIN user t1 ON t0.id = t1.id WHERE t1.id = ? LIMIT 1 
DEBUG - SELECT t1.username AS username2, t1.username_canonical AS username_canonical3, t1.email AS email4, t1.email_canonical AS email_canonical5, t1.enabled AS enabled6, t1.salt AS salt7, t1.password AS password8, t1.last_login AS last_login9, t1.locked AS locked10, t1.expired AS expired11, t1.expires_at AS expires_at12, t1.confirmation_token AS confirmation_token13, t1.password_requested_at AS password_requested_at14, t1.roles AS roles15, t1.credentials_expired AS credentials_expired16, t1.credentials_expire_at AS credentials_expire_at17, t1.id AS id18, t1.fb_uid AS fb_uid19, t1.tw_uid AS tw_uid20, t0.client_id AS client_id21, t1.type FROM manager t0 INNER JOIN user t1 ON t0.id = t1.id WHERE t1.id = ? LIMIT 1 
DEBUG - Username "admin" was reloaded from user provider. 
DEBUG - Notified event "kernel.request" to listener "Doctrine'Bundle'PHPCRBundle'EventListener'LocaleListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Bundle'AsseticBundle'EventListener'RequestListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "MyProject'MyBundle'Listener'Kernel::onKernelRequest". 
DEBUG - Notified event "kernel.controller" to listener "Symfony'Bundle'FrameworkBundle'DataCollector'RouterDataCollector::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Sensio'Bundle'FrameworkExtraBundle'EventListener'ControllerListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Sensio'Bundle'FrameworkExtraBundle'EventListener'ParamConverterListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Sensio'Bundle'FrameworkExtraBundle'EventListener'TemplateListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Acme'DemoBundle'EventListener'ControllerListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Symfony'Component'HttpKernel'DataCollector'RequestDataCollector::onKernelController". 
DEBUG - Notified event "kernel.exception" to listener "Symfony'Component'Security'Http'Firewall'ExceptionListener::onKernelException". 
DEBUG - Notified event "kernel.exception" to listener "Symfony'Component'HttpKernel'EventListener'ProfilerListener::onKernelException". 
DEBUG - Notified event "kernel.exception" to listener "Symfony'Component'HttpKernel'EventListener'ExceptionListener::onKernelException". 
CRITICAL - Doctrine'Common'Persistence'Mapping'MappingException: The class 'Symfony'Cmf'Bundle'MenuBundle'Document'MenuItem' was not found in the chain configured namespaces Doctrine'ODM'PHPCR'Document (uncaught exception) at /var/www/likeseed/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Mapping/MappingException.php line 38 
DEBUG - Notified event "kernel.request" to listener "Symfony'Component'HttpKernel'EventListener'ProfilerListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Bundle'FrameworkBundle'EventListener'SessionListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Component'HttpKernel'EventListener'RouterListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Component'HttpKernel'EventListener'LocaleListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Component'Security'Http'Firewall::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Doctrine'Bundle'PHPCRBundle'EventListener'LocaleListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "Symfony'Bundle'AsseticBundle'EventListener'RequestListener::onKernelRequest". 
DEBUG - Notified event "kernel.request" to listener "MyProject'MyBundle'Listener'Kernel::onKernelRequest". 
DEBUG - Notified event "kernel.controller" to listener "Symfony'Bundle'FrameworkBundle'DataCollector'RouterDataCollector::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Sensio'Bundle'FrameworkExtraBundle'EventListener'ControllerListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Sensio'Bundle'FrameworkExtraBundle'EventListener'ParamConverterListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Sensio'Bundle'FrameworkExtraBundle'EventListener'TemplateListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Acme'DemoBundle'EventListener'ControllerListener::onKernelController". 
DEBUG - Notified event "kernel.controller" to listener "Symfony'Component'HttpKernel'DataCollector'RequestDataCollector::onKernelController".