forms - Could not load type "sonata_user_registration" -

when try override registration form in sonatauserbundle got error : "could not load type "sonata_user_registration"".i searched solution of problem of them doesn't me. override template now, need override registration form(add age field), added few code in

//app/application/sonata/userbundle/entity/user.php   /**      * @orm\column(type="string", length=255)      *      * @assert\notblank(message="please enter name.", groups={"registration", "profile"})      */     protected $age;           public function getage()     {         return $this->age;     }          public function setage($age)     {          $this->a=$age;     } 

but if run php app/console doctrine:schema:update --force told nothing update registrationformtype:

  //app/application/sonata/userbundle/form/type/registrationformtype.php namespace application\sonata\userbundle\form\type;  use symfony\component\form\formbuilderinterface; use fos\userbundle\form\type\registrationformtype basetype;  class registrationformtype extends basetype {     public function buildform(formbuilderinterface $builder, array $options)     {         parent::buildform($builder, $options);         $builder->add('age');     }      public function getname()     {         return 'sonata_user_registration';     }         public function getparent()     {         return 'fos_user_registration';     }  } 

my services.yml:

//app/application/sonata/userbundle/resources/config/services.yml services:     sonata_user.registration.form.type:     class: application\sonata\userbundle\form\type\registrationformtype     arguments: [ "%fos_user.model.user.class%"]     tags:         - { name: form.type, alias: sonata_user_registration } 

config.yml:

fos_user:     user_class:     application\sonata\userbundle\entity\user     group:         group_class:   application\sonata\userbundle\entity\group         group_manager: sonata.user.orm.group_manager     service:         user_manager: sonata.user.orm.user_manager      registration:         form:             type: sonata_user_registration  sonata_user:     security_acl: true     manager_type: orm  

and dependencyinjection in //app/application/sonata/userbundle/dependencyinjection

namespace application\sonata\userbundle\dependencyinjection;  use symfony\component\httpkernel\dependencyinjection\extension; use symfony\component\dependencyinjection\containerbuilder; use symfony\component\dependencyinjection\loader\yamlfileloader; use symfony\component\config\filelocator;  class sonatauserextension extends extension {     public function load(array $configs, containerbuilder $container)     {         $loader = new yamlfileloader($container, new filelocator(__dir__.'/../resources/config'));         $loader->load('services.yml');     } }