Catchable Fatal Error: Object of class

Good day,

Please your help!

I built a Web service, but when I execute it. I got the next issue:

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

Catchable Fatal Error: Object of class Symfony\Component\Config\ConfigCache could not be converted to string

Consiguratiion:
#PruebaConrroller.php

"<?php

namespace Acme\SOAPBundle\Controller;

use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Container;

class PruebaController 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("hello")
• @soap\Param("name", phpType = "string")
• @soap\Result(phpType = "string")
  */
  public function helloAction($name)
  {
  return $this->container->get('besimple.soap.response')->setReturnValue(sprintf('Hello!', $name));
  }
  }"

#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:
AplicationService:
namespace: http://localhost:8000/app_dev.php/ws/AplicationService
binding: rpc-literal
resource: '@AcmeSOAPBundle/Controller/PruebaController.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();
    }