Failed to start the session because headers have already been sent by "/home/transfergd/www/app.php" at line 3.

Stack Trace

1. in kernel.root_dir/cache/prod/classes.php at line 118 
   115. throw new \RuntimeException('Failed to start the session: already started by PHP ($_SESSION is set).');
   116. }
   117. if (ini_get('session.use_cookies') && headers_sent($file, $line)) {
   118. throw new \RuntimeException(sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line));
   119. }
   120. if (!session_start()) {
   121. throw new \RuntimeException('Failed to start the session');
2. at NativeSessionStorage ->start ()
   in kernel.root_dir/cache/prod/classes.php at line 490 
   487. }
   488. public function start()
   489. {
   490. return $this->storage->start();
   491. }
   492. public function has($name)
   493. {
3. at Session ->start ()
   in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Security/Csrf/TokenStorage/SessionTokenStorage.php at line 89 
   86.     public function hasToken($tokenId)
   87.     {
   88.         if (!$this->session->isStarted()) {
   89.             $this->session->start();
   90.         }
   92.         return $this->session->has($this->namespace.'/'.$tokenId);
4. at SessionTokenStorage ->hasToken ('contacto')
   in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Security/Csrf/CsrfTokenManager.php at line 55 
   52.      */
   53.     public function getToken($tokenId)
   54.     {
   55.         if ($this->storage->hasToken($tokenId)) {
   56.             $value = $this->storage->getToken($tokenId);
   57.         } else {
   58.             $value = $this->generator->generateToken();
5. at CsrfTokenManager ->getToken ('contacto')
   in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Csrf/CsrfProvider/CsrfTokenManagerAdapter.php at line 47 
   44.      */
   45.     public function generateCsrfToken($intention)
   46.     {
   47.         return $this->tokenManager->getToken($intention)->getValue();
   48.     }
   50.     /**
6. at CsrfTokenManagerAdapter ->generateCsrfToken ('contacto')
   in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Csrf/CsrfProvider/CsrfProviderAdapter.php at line 49 
   46.      */
   47.     public function getToken($tokenId)
   48.     {
   49.         return new CsrfToken($tokenId, $this->csrfProvider->generateCsrfToken($tokenId));
   50.     }
   52.     /**
7. at CsrfProviderAdapter ->getToken ('contacto')
   in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Csrf/Type/FormTypeCsrfExtension.php at line 109 
   106.         if ($options['csrf_protection'] && !$view->parent && $options['compound']) {
   107.             $factory = $form->getConfig()->getFormFactory();
   108.             $tokenId = $options['csrf_token_id'] ?: ($form->getName() ?: get_class($form->getConfig()->getType()->getInnerType()));
   109.             $data = (string) $options['csrf_token_manager']->getToken($tokenId);
   111.             $csrfForm = $factory->createNamed($options['csrf_field_name'], 'hidden', $data, array(
   112.                 'mapped' => false,
8. at FormTypeCsrfExtension ->finishView (object(FormView), object(Form), array('block_name' => null, 'disabled' => false, 'label' => null, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'csrf_token_manager' => object(CsrfProviderAdapter), 'csrf_token_id' => null, 'csrf_provider' => object(CsrfTokenManagerAdapter), 'intention' => null, 'sonata_admin' => null, 'sonata_field_description' => null, 'label_render' => true, 'sonata_help' => null, 'horizontal_label_class' => '', 'horizontal_label_offset_class' => '', 'horizontal_input_wrapper_class' => ''))
   in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/ResolvedFormType.php at line 188 
   186.         foreach ($this->typeExtensions as $extension) {
   187.             /* @var FormTypeExtensionInterface $extension */
   188.             $extension->finishView($view, $form, $options);
   189.         }
   190.     }
9. at ResolvedFormType ->finishView (object(FormView), object(Form), array('block_name' => null, 'disabled' => false, 'label' => null, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'csrf_token_manager' => object(CsrfProviderAdapter), 'csrf_token_id' => null, 'csrf_provider' => object(CsrfTokenManagerAdapter), 'intention' => null, 'sonata_admin' => null, 'sonata_field_description' => null, 'label_render' => true, 'sonata_help' => null, 'horizontal_label_class' => '', 'horizontal_label_offset_class' => '', 'horizontal_input_wrapper_class' => ''))
   in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/ResolvedFormType.php at line 181 
   178.     public function finishView(FormView $view, FormInterface $form, array $options)
   179.     {
   180.         if (null !== $this->parent) {
   181.             $this->parent->finishView($view, $form, $options);
   182.         }
   184.         $this->innerType->finishView($view, $form, $options);
10. at ResolvedFormType ->finishView (object(FormView), object(Form), array('block_name' => null, 'disabled' => false, 'label' => null, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'csrf_token_manager' => object(CsrfProviderAdapter), 'csrf_token_id' => null, 'csrf_provider' => object(CsrfTokenManagerAdapter), 'intention' => null, 'sonata_admin' => null, 'sonata_field_description' => null, 'label_render' => true, 'sonata_help' => null, 'horizontal_label_class' => '', 'horizontal_label_offset_class' => '', 'horizontal_input_wrapper_class' => ''))
    in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php at line 1042 
    1039.             $view->children[$name] = $child->createView($view);
    1040.         }
    1042.         $type->finishView($view, $this, $options);
    1044.         return $view;
    1045.     }
11. at Form ->createView ()
    in /home/transfergd/src/Transfermediterraneo/FrontendBundle/Controller/DefaultController.php at line 550 
    547.             $resultadoPagina=$em->getRepository('TransfermediterraneoBackendBundle:Paginas')
    548.                 ->findOneBy(array('nombre'=>'[contacto]','idioma'=>$this->obtenerIdioma()));
    549.         }
    550.         return $this->render('TransfermediterraneoFrontendBundle:Default:contacto.html.twig',array('pagina'=>$resultadoPagina,'formulario'=>$formulario->createView()));
    551.     }
    553.     //helper
12. at DefaultController ->contactoAction ()
13. at call_user_func_array (array(object(DefaultController), 'contactoAction'), array())
    in kernel.root_dir/bootstrap.php.cache at line 2976 
    2973. $this->dispatcher->dispatch(KernelEvents::CONTROLLER, $event);
    2974. $controller = $event->getController();
    2975. $arguments = $this->resolver->getArguments($request, $controller);
    2976. $response = call_user_func_array($controller, $arguments);
    2977. if (!$response instanceof Response) {
    2978. $event = new GetResponseForControllerResultEvent($this, $request, $type, $response);
    2979. $this->dispatcher->dispatch(KernelEvents::VIEW, $event);
14. at HttpKernel ->handleRaw (object(Request), '1')
    in kernel.root_dir/bootstrap.php.cache at line 2938 
    2935. public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
    2936. {
    2937. try {
    2938. return $this->handleRaw($request, $type);
    2939. } catch (\Exception $e) {
    2940. if (false === $catch) {
    2941. $this->finishRequest($request, $type);
15. at HttpKernel ->handle (object(Request), '1', true)
    in kernel.root_dir/bootstrap.php.cache at line 3087 
    3084. $this->container->enterScope('request');
    3085. $this->container->set('request', $request,'request');
    3086. try {
    3087. $response = parent::handle($request, $type, $catch);
    3088. } catch (\Exception $e) {
    3089. $this->container->set('request', null,'request');
    3090. $this->container->leaveScope('request');
16. at ContainerAwareHttpKernel ->handle (object(Request), '1', true)
    in kernel.root_dir/bootstrap.php.cache at line 2337 
    2334. if (false === $this->booted) {
    2335. $this->boot();
    2336. }
    2337. return $this->getHttpKernel()->handle($request, $type, $catch);
    2338. }
    2339. protected function getHttpKernel()
    2340. {
17. at Kernel ->handle (object(Request))
    in /home/transfergd/www/app.php at line 142 
    139. // When using the HttpCache, you need to call the method in your front controller instead of relying on the configuration parameter
    140. //Request::enableHttpMethodParameterOverride();
    141. $request = Request::createFromGlobals();
    142. $response = $kernel->handle($request);
    143. $response->send();
    144. $kernel->terminate($request, $response);

Stack Trace (Plain Text) 

[1] RuntimeException: Failed to start the session because headers have already been sent by "/home/transfergd/www/app.php" at line 3.
    at n/a
        in /home/transfergd/app/cache/prod/classes.php line 118

    at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start()
        in /home/transfergd/app/cache/prod/classes.php line 490

    at Symfony\Component\HttpFoundation\Session\Session->start()
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Security/Csrf/TokenStorage/SessionTokenStorage.php line 89

    at Symfony\Component\Security\Csrf\TokenStorage\SessionTokenStorage->hasToken('contacto')
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Security/Csrf/CsrfTokenManager.php line 55

    at Symfony\Component\Security\Csrf\CsrfTokenManager->getToken('contacto')
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Csrf/CsrfProvider/CsrfTokenManagerAdapter.php line 47

    at Symfony\Component\Form\Extension\Csrf\CsrfProvider\CsrfTokenManagerAdapter->generateCsrfToken('contacto')
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Csrf/CsrfProvider/CsrfProviderAdapter.php line 49

    at Symfony\Component\Form\Extension\Csrf\CsrfProvider\CsrfProviderAdapter->getToken('contacto')
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Csrf/Type/FormTypeCsrfExtension.php line 109

    at Symfony\Component\Form\Extension\Csrf\Type\FormTypeCsrfExtension->finishView(object(FormView), object(Form), array('block_name' => null, 'disabled' => false, 'label' => null, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'csrf_token_manager' => object(CsrfProviderAdapter), 'csrf_token_id' => null, 'csrf_provider' => object(CsrfTokenManagerAdapter), 'intention' => null, 'sonata_admin' => null, 'sonata_field_description' => null, 'label_render' => true, 'sonata_help' => null, 'horizontal_label_class' => '', 'horizontal_label_offset_class' => '', 'horizontal_input_wrapper_class' => ''))
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/ResolvedFormType.php line 188

    at Symfony\Component\Form\ResolvedFormType->finishView(object(FormView), object(Form), array('block_name' => null, 'disabled' => false, 'label' => null, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'csrf_token_manager' => object(CsrfProviderAdapter), 'csrf_token_id' => null, 'csrf_provider' => object(CsrfTokenManagerAdapter), 'intention' => null, 'sonata_admin' => null, 'sonata_field_description' => null, 'label_render' => true, 'sonata_help' => null, 'horizontal_label_class' => '', 'horizontal_label_offset_class' => '', 'horizontal_input_wrapper_class' => ''))
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/ResolvedFormType.php line 181

    at Symfony\Component\Form\ResolvedFormType->finishView(object(FormView), object(Form), array('block_name' => null, 'disabled' => false, 'label' => null, 'attr' => array(), 'translation_domain' => null, 'auto_initialize' => true, 'data_class' => null, 'empty_data' => object(Closure), 'trim' => true, 'required' => true, 'read_only' => false, 'max_length' => null, 'pattern' => null, 'property_path' => null, 'mapped' => true, 'by_reference' => true, 'error_bubbling' => true, 'label_attr' => array(), 'virtual' => null, 'inherit_data' => false, 'compound' => true, 'method' => 'POST', 'action' => '', 'post_max_size_message' => 'The uploaded file was too large. Please try to upload a smaller file.', 'validation_groups' => null, 'error_mapping' => array(), 'constraints' => array(), 'cascade_validation' => false, 'invalid_message' => 'This value is not valid.', 'invalid_message_parameters' => array(), 'extra_fields_message' => 'This form should not contain extra fields.', 'csrf_protection' => true, 'csrf_field_name' => '_token', 'csrf_message' => 'The CSRF token is invalid. Please try to resubmit the form.', 'csrf_token_manager' => object(CsrfProviderAdapter), 'csrf_token_id' => null, 'csrf_provider' => object(CsrfTokenManagerAdapter), 'intention' => null, 'sonata_admin' => null, 'sonata_field_description' => null, 'label_render' => true, 'sonata_help' => null, 'horizontal_label_class' => '', 'horizontal_label_offset_class' => '', 'horizontal_input_wrapper_class' => ''))
        in /home/transfergd/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 1042

    at Symfony\Component\Form\Form->createView()
        in /home/transfergd/src/Transfermediterraneo/FrontendBundle/Controller/DefaultController.php line 550

    at Transfermediterraneo\FrontendBundle\Controller\DefaultController->contactoAction()
        in  line 

    at call_user_func_array(array(object(DefaultController), 'contactoAction'), array())
        in /home/transfergd/app/bootstrap.php.cache line 2976

    at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), '1')
        in /home/transfergd/app/bootstrap.php.cache line 2938

    at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), '1', true)
        in /home/transfergd/app/bootstrap.php.cache line 3087

    at Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle(object(Request), '1', true)
        in /home/transfergd/app/bootstrap.php.cache line 2337

    at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
        in /home/transfergd/www/app.php line 142