symfony - Symfony2 CMF: Using Doctrine ORM instead of PHPCR ODM -

I am working in a project in Symfony2 and I use Symfony CMF I want to do with principle ORM .

In my config.yml:

  knp_menu: twig: true cmf_routing: dynamic: firmness: orm: enabled: true manager_name: ~  

I am getting this error:

  [symphonie \ component \ dependency ad \ exception \ parameter \ ntfound expression] you requested non-existent parameters "none of the parameters parameter of a valid name Happened as " I am trying to use the  principle ORM  instead of   
 I  PHPCR oDM  
 
 
 Does anyone know what I can do? 
 
 Thank you!