php - Catchable Fatal Error: symfony2 -

i'm new in symfony2 , started simple project of symblog create crud of posts , comments, when created crud of comments gone fine, have persist, merge , remove posts , have error:

catchable fatal error: argument 1 passed noticiabundle\repository\noticiarepository::adicionar() must instance of proxies__cg__\noticiabundle\entity\noticia, instance of noticiabundle\entity\noticia given, called in c:\desenvolvimento\wamp\www\myproject\src\noticiabundle\controller\noticiacontroller.php on line 49 , defined

controller persist function:

/**  * @route("/cadastrar_noticia", name="_cadastrar_noticia")  * @template()  */ public function cadastraraction() {     $noticia = new noticia();     $request = $this->getrequest();     $form = $this->createform(new noticiatype(), $noticia);     $form->handlerequest($request);      if ($form->isvalid()) {         try {             $noticia = $form->getdata();              $noticiarepository = $this->getdoctrine()->getrepository('noticiabundle:noticia');             $noticiarepository->adicionar($noticia);              $this->addflash('success', 'noticia cadastrada com sucesso');              return $this->redirecttoroute('_imagem_raias_index');         } catch (exception $ex) {             echo $ex->getmessage();         }     }      return array("form" => $form->createview()); } 

persist repository

 public function adicionar(noticia $noticia) {      $this->_em->persist($noticia);     $this->_em->flush();     return true;  } 

and formtype

<?php  namespace noticiabundle\form;  use symfony\component\form\abstracttype; use symfony\component\form\formbuilderinterface; use symfony\component\optionsresolver\optionsresolverinterface;  class noticiatype extends abstracttype {     /**      * @param formbuilderinterface $builder      * @param array $options      */     public function buildform(formbuilderinterface $builder, array $options)     {         $builder             ->add('titulo',null, array('attr' => array('class' => 'form-control'),                 'label_attr' => array('class' => 'control-label col-lg-2')             ))             ->add('imagem',null, array('attr' => array('class' => 'form-control'),                 'label_attr' => array('class' => 'control-label col-lg-2')             ))             ->add('noticia','textarea', array('attr' => array('class' => 'form-control', 'rows' => 15),                 'label_attr' => array('class' => 'control-label col-lg-2')             ))             ->add('tags',null, array('attr' => array('class' => 'form-control'),                 'label_attr' => array('class' => 'control-label col-lg-2')             ))             ->add('salvar', 'submit', array('attr' => array('class' => 'btn btn-primary pull-right')));     }      /**      * @param optionsresolverinterface $resolver      */     public function setdefaultoptions(optionsresolverinterface $resolver)     {         $resolver->setdefaults(array(             'data_class' => 'noticiabundle\entity\noticia'         ));     }      /**      * @return string      */     public function getname()     {         return 'noticiabundle_noticia';     } } 

anyone can me??

in repository defined adicionar, check use statement. need make refer actual model, not proxy.