Cannot load resource "null"

Good day,

Please your help!

I'm creating a web service that encapsulates another SAP service. For security reasons I can not publish the SAP service directly since all the services on the Internet would be exposed. I got the next error:

http://localhost:8000/app_dev.php/ws/WSConsultaSuscriptor?wsdl

Cannot load resource "null".

Configuration:
#WSConsultaSuscriptorController.php

"<?php

namespace Acme\SOAPBundle\Controller;

use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Container;

-/**
-* @soap\Header()
_*/

class WSConsultaSuscriptorController implements ContainerAwareInterface
{

• /**
  -* Sets the container.
  -*
  -* @param ContainerInterface|null $container A ContainerInterface instance or null
  -*/
  public function setContainer(ContainerInterface $container = null){
  $this->container = $container;
  }

-/**
-* @soap\Method("ConsultaSuscriptor")
-* @soap\Param("VCliente", phpType = "string")
-* @soap\Param("VEtmenge", phpType = "string")
-* @soap\Param("VProducto", phpType = "string")
-* @soap\Param("VSpart", phpType = "string")
-* @soap\Result(phpType = "string")
-*/

public function ConsultaSuscriptorAction($header, $VCliente = '0',$VEtmenge = '0',$VProducto = '',$VSpart = '')
{
var_dump($VCliente);
exit();
ini_set('soap.wsdl_cache_enabled',0);
ini_set('soap.wsdl_cache_ttl',0);

  // require_once "nusoap.php";
  
  $URL = 'http://webservice?wsdl';
  $option = array('trace'=>true,'login' => 'xxxxx','password' => 'xxxxx',
  				'soap_version' => 'SOAP_1_1',
  				'encoding' => 'utf-8');
  $client = new \SOAPClient($URL, $option);
  $functions = $client->__getFunctions();
  $bodyoptions = array(
  	'VCliente' 	=> $VCliente,
  	'VEtmenge'	=> $VEtmenge,
  	'VProducto'	=> $VProducto, 
  	'VSpart'    => $VSpart
  	);
  $result = $client->call('Zvop20ValidaCant', array($bodyoptions));
  $soap = $client->__getLastResponse();
  
  $response = new Response($soap);
  $response->headers->set('Content-Type', 'application/xml; charset=utf-8');
  return $response;		

}
}

#routing.yml

acme_soap_homepage:
path: /
defaults: { _controller: AcmeSOAPBundle:Default:index }
acme_soap:
resource: '@AcmeSOAPBundle/Controller/'
type: annotation
_besimple_soap:
resource: 'be_simple_soap.yml'
prefix: /ws

#be_simple_soap.yml

_webservice_call:
path: /{webservice}
defaults: { _controller: BeSimpleSoapBundle:SoapWebService:Call }
requirements:
_format: xml
methods: POST

_webservice_definition:
path: /{webservice}
defaults: { _controller: BeSimpleSoapBundle:SoapWebService:Definition }
requirements:
_format: xml
methods: GET

#config.yml

be_simple_soap:
services:
WSConsultaSuscriptor:
namespace: http://localhost:8000/app_dev.php/ws/WSConsultaSuscriptor
binding: rpc-literal
resource: '@AcmeSOAPBundle/Controller/WSConsultaSuscriptorController.php'
resource_type: annotation

#SoapWebServiceController.php

"<?php

/*

• This file is part of the BeSimpleSoapBundle.
• (c) Christian Kerl christian-kerl@web.de
• (c) Francis Besset francis.besset@gmail.com
• This source file is subject to the MIT license that is bundled
• with this source code in the file LICENSE.
  */

namespace BeSimple\SoapBundle\Controller;

use BeSimple\SoapBundle\Handler\ExceptionHandler;
use BeSimple\SoapBundle\Soap\SoapRequest;
use BeSimple\SoapBundle\Soap\SoapResponse;
use BeSimple\SoapServer\SoapServerBuilder;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\FlattenException;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;

/**
.....
*/
class SoapWebServiceController Implements ContainerAwareInterface
{

• /**
  -* Sets the container.
  -*
  -* @param ContainerInterface|null $container A ContainerInterface instance or null
  -*/
  public function setContainer(ContainerInterface $container = null){
  $this->container = $container;
  }

#autoload.php

"<?php

use Doctrine\Common\Annotations\AnnotationRegistry;
use Composer\Autoload\ClassLoader;

/** @var ClassLoader $loader */
$loader = require DIR.'/../vendor/autoload.php';
//Load BesimpleSoap
$loader->add('BeSimple\SoapCommon' , DIR.'/../vendor/besimple-soapcommon/src');
$loader->add('BeSimple\SoapServer' , DIR.'/../vendor/besimple-soapserver/src');
$loader->add('BeSimple\SoapClient' , DIR.'/../vendor/besimple-soapclient/src');
$loader->add('BeSimple\SoapClient' , DIR.'/../vendor/besimple-soapclient/src');
$loader->add('BeSimple', DIR.'/../vendor/bundles');

// var_dump ($loader);
// exit();

AnnotationRegistry::registerLoader([$loader, 'loadClass']);

return $loader;

#AppKernel.php

"<?php

use Symfony\Component\HttpKernel\Kernel;
use Symfony\Component\Config\Loader\LoaderInterface;

class AppKernel extends Kernel
{
public function registerBundles()
{
$bundles = [
new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
new Symfony\Bundle\AsseticBundle\AsseticBundle(),
new Symfony\Bundle\SecurityBundle\SecurityBundle(),
new Symfony\Bundle\TwigBundle\TwigBundle(),
new Symfony\Bundle\MonologBundle\MonologBundle(),
new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
new Doctrine\Bundle\DoctrineBundle\DoctrineBundle(),
new Sensio\Bundle\FrameworkExtraBundle\SensioFrameworkExtraBundle(),
new AppBundle\AppBundle(),
new Acme\SOAPBundle\AcmeSOAPBundle(),
new BeSimple\SoapBundle\BeSimpleSoapBundle(),
];

    if (in_array($this->getEnvironment(), ['dev', 'test'], true)) {
        $bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
        $bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
        $bundles[] = new Sensio\Bundle\DistributionBundle\SensioDistributionBundle();
        $bundles[] = new Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle();
    }