Error 500 Internal Server Error

GET https://senbillets.com/cosama/about

IP
74.7.227.170
Profiled on
Token
8c23e7
Forwarded to ErrorController (01219a)

Exceptions

RuntimeError

HTTP 500 Internal Server Error

Variable "title" does not exist in home/about.html.twig at line 3.

Exception

Twig\Error\ RuntimeError

Show exception properties 
Twig\Error\RuntimeError {#680
  -lineno: 3
  -rawMessage: "Variable "title" does not exist."
  -source: Twig\Source {#663
    -code: """
      {% extends 'base.html.twig' %}\n
      \n
      {% block title %}{{ title }} - Symfony 7.2{% endblock %}\n
      \n
      {% block body %}\n
          <div class="container py-5">\n
              <div class="row justify-content-center">\n
                  <div class="col-lg-8">\n
                      <div class="text-center mb-5">\n
                          <h1 class="display-4 fw-bold text-primary mb-4">{{ title }}</h1>\n
                          <p class="lead text-muted">{{ description }}</p>\n
                      </div>\n
      \n
                      <div class="card border-0 shadow-lg">\n
                          <div class="card-body p-5">\n
                              <h2 class="h3 fw-bold mb-4">Architecture de l'application</h2>\n
                              \n
                              <div class="row g-4 mb-5">\n
                                  <div class="col-md-6">\n
                                      <h4 class="h5 fw-bold text-primary">Backend</h4>\n
                                      <ul class="list-unstyled">\n
                                          <li class="mb-2">✅ Symfony 7.2</li>\n
                                          <li class="mb-2">✅ Doctrine ORM</li>\n
                                          <li class="mb-2">✅ Twig Templates</li>\n
                                          <li class="mb-2">✅ Asset Mapper</li>\n
                                      </ul>\n
                                  </div>\n
                                  <div class="col-md-6">\n
                                      <h4 class="h5 fw-bold text-success">Frontend</h4>\n
                                      <ul class="list-unstyled">\n
                                          <li class="mb-2">✅ Bootstrap 5.3</li>\n
                                          <li class="mb-2">✅ CSS personnalisé</li>\n
                                          <li class="mb-2">✅ JavaScript moderne</li>\n
                                          <li class="mb-2">✅ Design responsive</li>\n
                                      </ul>\n
                                  </div>\n
                              </div>\n
      \n
                              <h3 class="h4 fw-bold mb-3">Fonctionnalités implémentées</h3>\n
                              <div class="row g-3 mb-4">\n
                                  <div class="col-md-6">\n
                                      <div class="d-flex align-items-center">\n
                                          <span class="badge bg-primary me-3">1</span>\n
                                          <span>Gestion des produits (CRUD)</span>\n
                                      </div>\n
                                  </div>\n
                                  <div class="col-md-6">\n
                                      <div class="d-flex align-items-center">\n
                                          <span class="badge bg-success me-3">2</span>\n
                                          <span>Interface utilisateur moderne</span>\n
                                      </div>\n
                                  </div>\n
                                  <div class="col-md-6">\n
                                      <div class="d-flex align-items-center">\n
                                          <span class="badge bg-warning me-3">3</span>\n
                                          <span>Base de données MySQL</span>\n
                                      </div>\n
                                  </div>\n
                                  <div class="col-md-6">\n
                                      <div class="d-flex align-items-center">\n
                                          <span class="badge bg-info me-3">4</span>\n
                                          <span>Asset Mapper intégré</span>\n
                                      </div>\n
                                  </div>\n
                              </div>\n
      \n
                              <div class="alert alert-info" role="alert">\n
                                  <h4 class="alert-heading">💡 Note technique</h4>\n
                                  <p class="mb-0">Cette application utilise Asset Mapper de Symfony 7.2 pour gérer les assets frontend sans avoir besoin de Webpack ou d'autres bundlers JavaScript complexes.</p>\n
                              </div>\n
                          </div>\n
                      </div>\n
                  </div>\n
              </div>\n
          </div>\n
      {% endblock %}
      """
    -name: "home/about.html.twig"
    -path: "/home/senbill/www/templates/home/about.html.twig"
  }
  -phpFile: "/home/senbill/www/var/cache/dev/twig/78/7800e71c7857c4fe07de29442f50b430.php"
  -phpLine: 76
}
in templates/home/about.html.twig (line 3)
  1. {% extends 'base.html.twig' %}
  3. {% block title %}{{ title }} - Symfony 7.2{% endblock %}
  5. {% block body %}
  6.     <div class="container py-5">
  7.         <div class="row justify-content-center">
  8.             <div class="col-lg-8">
in var/cache/dev/twig/78/7800e71c7857c4fe07de29442f50b430.php -> {closure} (line 76)
  1.         $__internal_5a27a8ba21ca79b61932376b2fa922d2->enter($__internal_5a27a8ba21ca79b61932376b2fa922d2_prof = new \Twig\Profiler\Profile($this->getTemplateName(), "block", "title"));
  3.         $__internal_6f47bbe9983af81f1e7450e9a3e3768f = $this->extensions["Symfony\\Bridge\\Twig\\Extension\\ProfilerExtension"];
  4.         $__internal_6f47bbe9983af81f1e7450e9a3e3768f->enter($__internal_6f47bbe9983af81f1e7450e9a3e3768f_prof = new \Twig\Profiler\Profile($this->getTemplateName(), "block", "title"));
  6.         yield $this->env->getRuntime('Twig\Runtime\EscaperRuntime')->escape((isset($context["title"]) || array_key_exists("title", $context) ? $context["title"] : (function () { throw new RuntimeError('Variable "title" does not exist.', 3, $this->source); })()), "html", null, true);
  7.         yield " - Symfony 7.2";
  8.         
  9.         $__internal_6f47bbe9983af81f1e7450e9a3e3768f->leave($__internal_6f47bbe9983af81f1e7450e9a3e3768f_prof);
  11.         
in vendor/twig/twig/src/Template.php -> block_title (line 446)
  1.             throw new \LogicException('A block must be a method on a \Twig\Template instance.');
  2.         }
  4.         if (null !== $template) {
  5.             try {
  6.                 yield from $template->$block($context, $blocks);
  7.             } catch (Error $e) {
  8.                 if (!$e->getSourceContext()) {
  9.                     $e->setSourceContext($template->getSourceContext());
  10.                 }
in var/cache/dev/twig/0e/0ef0973b26a5132659d2c92472cb90f9.php -> yieldBlock (line 61)
  1. <head>
  2.     <meta charset=\"UTF-8\">
  3.     <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">
  4.     <title>";
  5.         // line 6
  6.         yield from $this->unwrap()->yieldBlock('title', $context, $blocks);
  7.         yield "</title>
  8.     <link rel=\"icon\" href=\"data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 128 128'><text y='1.2em' font-size='96'>🎫</text></svg>\">
  10. ";
  11.         // line 9
in vendor/twig/twig/src/Template.php -> doDisplay (line 402)
  1.     {
  2.         $context += $this->env->getGlobals();
  3.         $blocks = array_merge($this->blocks, $blocks);
  5.         try {
  6.             yield from $this->doDisplay($context, $blocks);
  7.         } catch (Error $e) {
  8.             if (!$e->getSourceContext()) {
  9.                 $e->setSourceContext($this->getSourceContext());
  10.             }
in var/cache/dev/twig/78/7800e71c7857c4fe07de29442f50b430.php -> yield (line 54)
  2.         $__internal_6f47bbe9983af81f1e7450e9a3e3768f = $this->extensions["Symfony\\Bridge\\Twig\\Extension\\ProfilerExtension"];
  3.         $__internal_6f47bbe9983af81f1e7450e9a3e3768f->enter($__internal_6f47bbe9983af81f1e7450e9a3e3768f_prof = new \Twig\Profiler\Profile($this->getTemplateName(), "template", "home/about.html.twig"));
  5.         $this->parent = $this->load("base.html.twig", 1);
  6.         yield from $this->parent->unwrap()->yield($context, array_merge($this->blocks, $blocks));
  7.         
  8.         $__internal_5a27a8ba21ca79b61932376b2fa922d2->leave($__internal_5a27a8ba21ca79b61932376b2fa922d2_prof);
  10.         
  11.         $__internal_6f47bbe9983af81f1e7450e9a3e3768f->leave($__internal_6f47bbe9983af81f1e7450e9a3e3768f_prof);
in vendor/twig/twig/src/Template.php -> doDisplay (line 402)
  1.     {
  2.         $context += $this->env->getGlobals();
  3.         $blocks = array_merge($this->blocks, $blocks);
  5.         try {
  6.             yield from $this->doDisplay($context, $blocks);
  7.         } catch (Error $e) {
  8.             if (!$e->getSourceContext()) {
  9.                 $e->setSourceContext($this->getSourceContext());
  10.             }
in vendor/twig/twig/src/Template.php -> yield (line 358)
  1.         return $this->blocks;
  2.     }
  4.     public function display(array $context, array $blocks = []): void
  5.     {
  6.         foreach ($this->yield($context, $blocks) as $data) {
  7.             echo $data;
  8.         }
  9.     }
  11.     public function render(array $context): string
in vendor/twig/twig/src/Template.php -> display (line 373)
  1.                 ob_start();
  2.             } else {
  3.                 ob_start(function () { return ''; });
  4.             }
  5.             try {
  6.                 $this->display($context);
  7.             } catch (\Throwable $e) {
  8.                 while (ob_get_level() > $level) {
  9.                     ob_end_clean();
  10.                 }
in vendor/twig/twig/src/TemplateWrapper.php -> render (line 51)
  1.         yield from $this->template->yieldBlock($name, $context);
  2.     }
  4.     public function render(array $context = []): string
  5.     {
  6.         return $this->template->render($context);
  7.     }
  9.     /**
  10.      * @return void
  11.      */
in vendor/twig/twig/src/Environment.php -> render (line 333)
  1.      * @throws SyntaxError  When an error occurred during compilation
  2.      * @throws RuntimeError When an error occurred during rendering
  3.      */
  4.     public function render($name, array $context = []): string
  5.     {
  6.         return $this->load($name)->render($context);
  7.     }
  9.     /**
  10.      * Displays a template.
  11.      *
in vendor/symfony/framework-bundle/Controller/AbstractController.php -> render (line 431)
  2.         if (null !== $block) {
  3.             return $this->container->get('twig')->load($view)->renderBlock($block, $parameters);
  4.         }
  6.         return $this->container->get('twig')->render($view, $parameters);
  7.     }
  9.     private function doRender(string $view, ?string $block, array $parameters, ?Response $response, string $method): Response
  10.     {
  11.         $content = $this->doRenderView($view, $block, $parameters, $method);
in vendor/symfony/framework-bundle/Controller/AbstractController.php -> doRenderView (line 436)
  1.         return $this->container->get('twig')->render($view, $parameters);
  2.     }
  4.     private function doRender(string $view, ?string $block, array $parameters, ?Response $response, string $method): Response
  5.     {
  6.         $content = $this->doRenderView($view, $block, $parameters, $method);
  7.         $response ??= new Response();
  9.         if (200 === $response->getStatusCode()) {
  10.             foreach ($parameters as $v) {
  11.                 if ($v instanceof FormInterface && $v->isSubmitted() && !$v->isValid()) {
in vendor/symfony/framework-bundle/Controller/AbstractController.php -> doRender (line 250)
  1.      * If an invalid form is found in the list of parameters, a 422 status code is returned.
  2.      * Forms found in parameters are auto-cast to form views.
  3.      */
  4.     protected function render(string $view, array $parameters = [], ?Response $response = null): Response
  5.     {
  6.         return $this->doRender($view, null, $parameters, $response, __FUNCTION__);
  7.     }
  9.     /**
  10.      * Renders a block in a view.
  11.      *
AbstractController->render('home/about.html.twig') in src/Controller/HomeController.php (line 98)
  1.     }
  3.     #[Route('/cosama/about', name: 'app_about')]
  4.     public function cosama_about(): Response
  5.     {
  6.         return $this->render('home/about.html.twig');
  7.     }
  9.     #[Route('/contact', name: 'app_contact')]
  10.     public function contact(): Response
  11.     {
in vendor/symfony/http-kernel/HttpKernel.php -> cosama_about (line 183)
  1.         $this->dispatcher->dispatch($event, KernelEvents::CONTROLLER_ARGUMENTS);
  2.         $controller = $event->getController();
  3.         $arguments = $event->getArguments();
  5.         // call controller
  6.         $response = $controller(...$arguments);
  8.         // view
  9.         if (!$response instanceof Response) {
  10.             $event = new ViewEvent($this, $request, $type, $response, $event);
  11.             $this->dispatcher->dispatch($event, KernelEvents::VIEW);
in vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 76)
  1.         $request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
  3.         $this->requestStack->push($request);
  4.         $response = null;
  5.         try {
  6.             return $response = $this->handleRaw($request, $type);
  7.         } catch (\Throwable $e) {
  8.             if ($e instanceof \Error && !$this->handleAllThrowables) {
  9.                 throw $e;
  10.             }
in vendor/symfony/http-kernel/Kernel.php -> handle (line 182)
  1.         $this->boot();
  2.         ++$this->requestStackSize;
  3.         $this->resetServices = true;
  5.         try {
  6.             return $this->getHttpKernel()->handle($request, $type, $catch);
  7.         } finally {
  8.             --$this->requestStackSize;
  9.         }
  10.     }
in vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php -> handle (line 35)
  1.     ) {
  2.     }
  4.     public function run(): int
  5.     {
  6.         $response = $this->kernel->handle($this->request);
  8.         if (Kernel::VERSION_ID >= 60400) {
  9.             $response->send(false);
  11.             if (\function_exists('fastcgi_finish_request') && !$this->debug) {
in vendor/autoload_runtime.php -> run (line 29)
  1. $app = $app(...$args);
  3. exit(
  4.     $runtime
  5.         ->getRunner($app)
  6.         ->run()
  7. );
require('/home/senbill/www/vendor/autoload_runtime.php') in public/index.php (line 11)
  2. use App\Kernel;
  3. use Symfony\Component\ErrorHandler\Debug;
  4. use Symfony\Component\HttpFoundation\Request;
  6. require dirname(__DIR__).'/vendor/autoload_runtime.php';
  8. // Définir les trusted hosts
  9. Request::setTrustedHosts(['^senbillets\.com$']);
  10. date_default_timezone_set('UTC');

Logs

Level Channel Message
INFO 20:15:24 php User Deprecated: The Liip\ImagineBundle\Templating\FilterTrait trait is deprecated since version 2.7 and will be removed in 3.0; use Twig instead. 
{
    "exception": {}
}
INFO 20:15:24 php User Deprecated: The Liip\ImagineBundle\Templating\FilterExtension class is deprecated since version 2.7 and will be removed in 3.0; configure "liip_imagine.twig.mode" to "lazy" instead. 
{
    "exception": {}
}
DEBUG 20:15:24 php Warning: Zend OPcache API is restricted by "restrict_api" configuration directive 
{
    "exception": {
        "severity": 2,
        "file": "/home/senbill/www/vendor/symfony/error-handler/DebugClassLoader.php",
        "line": 300,
        "trace": [
            {
                "file": "/home/senbill/www/vendor/doctrine/doctrine-bundle/src/DoctrineBundle.php",
                "line": 136,
                "function": "loadClass",
                "class": "Symfony\\Component\\ErrorHandler\\DebugClassLoader",
                "type": "->"
            }
        ],
        "count": 43
    }
}
INFO 20:15:24 request Matched route "_profiler". 
{
    "route": "_profiler",
    "route_parameters": {
        "_route": "_profiler",
        "_controller": "web_profiler.controller.profiler::panelAction",
        "token": "8c23e7"
    },
    "request_uri": "https://senbillets.com/_profiler/8c23e7",
    "method": "GET"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\DebugHandlersListener::configure"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\ValidateRequestListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ValidateRequestListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Nelmio\CorsBundle\EventListener\CorsListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Nelmio\\CorsBundle\\EventListener\\CorsListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bridge\Doctrine\Middleware\IdleConnection\Listener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bridge\\Doctrine\\Middleware\\IdleConnection\\Listener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\SessionListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\SessionListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::setDefaultLocale". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener::setDefaultLocale"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\AssetMapper\AssetMapperDevServerSubscriber::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\AssetMapper\\AssetMapperDevServerSubscriber::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\RouterListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\RouterListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleAwareListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleAwareListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bundle\SecurityBundle\Debug\TraceableFirewallListener::configureLogoutUrlGenerator". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bundle\\SecurityBundle\\Debug\\TraceableFirewallListener::configureLogoutUrlGenerator"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bundle\SecurityBundle\Debug\TraceableFirewallListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bundle\\SecurityBundle\\Debug\\TraceableFirewallListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.controller" to listener "Symfony\Bundle\FrameworkBundle\DataCollector\RouterDataCollector::onKernelController". 
{
    "event": "kernel.controller",
    "listener": "Symfony\\Bundle\\FrameworkBundle\\DataCollector\\RouterDataCollector::onKernelController"
}
DEBUG 20:15:24 event Notified event "kernel.controller" to listener "Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::onKernelController". 
{
    "event": "kernel.controller",
    "listener": "Symfony\\Component\\HttpKernel\\DataCollector\\RequestDataCollector::onKernelController"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\Security\Http\EventListener\IsCsrfTokenValidAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\Security\\Http\\EventListener\\IsCsrfTokenValidAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\Security\Http\EventListener\IsGrantedAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\Security\\Http\\EventListener\\IsGrantedAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\HttpKernel\EventListener\CacheAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\CacheAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Container8SDSyct\RequestPayloadValueResolverGhost01ca9cc::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Container8SDSyct\\RequestPayloadValueResolverGhost01ca9cc::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\HttpKernel\EventListener\ErrorListener::onControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ErrorListener::onControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\DebugHandlersListener::configure"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\ValidateRequestListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ValidateRequestListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Nelmio\CorsBundle\EventListener\CorsListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Nelmio\\CorsBundle\\EventListener\\CorsListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bridge\Doctrine\Middleware\IdleConnection\Listener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bridge\\Doctrine\\Middleware\\IdleConnection\\Listener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\SessionListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\SessionListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::setDefaultLocale". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener::setDefaultLocale"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\AssetMapper\AssetMapperDevServerSubscriber::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\AssetMapper\\AssetMapperDevServerSubscriber::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\RouterListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\RouterListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleAwareListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleAwareListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bundle\SecurityBundle\Debug\TraceableFirewallListener::configureLogoutUrlGenerator". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bundle\\SecurityBundle\\Debug\\TraceableFirewallListener::configureLogoutUrlGenerator"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bundle\SecurityBundle\Debug\TraceableFirewallListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bundle\\SecurityBundle\\Debug\\TraceableFirewallListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.controller" to listener "Symfony\Bundle\FrameworkBundle\DataCollector\RouterDataCollector::onKernelController". 
{
    "event": "kernel.controller",
    "listener": "Symfony\\Bundle\\FrameworkBundle\\DataCollector\\RouterDataCollector::onKernelController"
}
DEBUG 20:15:24 event Notified event "kernel.controller" to listener "Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::onKernelController". 
{
    "event": "kernel.controller",
    "listener": "Symfony\\Component\\HttpKernel\\DataCollector\\RequestDataCollector::onKernelController"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\Security\Http\EventListener\IsCsrfTokenValidAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\Security\\Http\\EventListener\\IsCsrfTokenValidAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\Security\Http\EventListener\IsGrantedAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\Security\\Http\\EventListener\\IsGrantedAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\HttpKernel\EventListener\CacheAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\CacheAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Container8SDSyct\RequestPayloadValueResolverGhost01ca9cc::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Container8SDSyct\\RequestPayloadValueResolverGhost01ca9cc::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\HttpKernel\EventListener\ErrorListener::onControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ErrorListener::onControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\AssetMapper\AssetMapperDevServerSubscriber::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\AssetMapper\\AssetMapperDevServerSubscriber::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\Security\Csrf\SameOriginCsrfTokenManager::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\Security\\Csrf\\SameOriginCsrfTokenManager::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\Security\Http\Firewall\ContextListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\Security\\Http\\Firewall\\ContextListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Nelmio\CorsBundle\EventListener\CorsListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Nelmio\\CorsBundle\\EventListener\\CorsListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\HttpKernel\EventListener\ResponseListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ResponseListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\WebLink\EventListener\AddLinkHeaderListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\WebLink\\EventListener\\AddLinkHeaderListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\HttpKernel\\DataCollector\\RequestDataCollector::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\Security\Http\RememberMe\ResponseListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\Security\\Http\\RememberMe\\ResponseListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Nelmio\CorsBundle\EventListener\CacheableResponseVaryListener::onResponse". 
{
    "event": "kernel.response",
    "listener": "Nelmio\\CorsBundle\\EventListener\\CacheableResponseVaryListener::onResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\HttpKernel\EventListener\CacheAttributeListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\CacheAttributeListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\HttpKernel\EventListener\ProfilerListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ProfilerListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\HttpKernel\EventListener\ErrorListener::removeCspHeader". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ErrorListener::removeCspHeader"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Bundle\WebProfilerBundle\EventListener\WebDebugToolbarListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Bundle\\WebProfilerBundle\\EventListener\\WebDebugToolbarListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\HttpKernel\EventListener\DisallowRobotsIndexingListener::onResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\DisallowRobotsIndexingListener::onResponse"
}
DEBUG 20:15:24 event Notified event "kernel.response" to listener "Symfony\Component\HttpKernel\EventListener\SessionListener::onKernelResponse". 
{
    "event": "kernel.response",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\SessionListener::onKernelResponse"
}
DEBUG 20:15:24 event Notified event "kernel.finish_request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::onKernelFinishRequest". 
{
    "event": "kernel.finish_request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener::onKernelFinishRequest"
}
DEBUG 20:15:24 event Notified event "kernel.finish_request" to listener "Symfony\Component\HttpKernel\EventListener\RouterListener::onKernelFinishRequest". 
{
    "event": "kernel.finish_request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\RouterListener::onKernelFinishRequest"
}
DEBUG 20:15:24 event Notified event "kernel.finish_request" to listener "Symfony\Bundle\SecurityBundle\Debug\TraceableFirewallListener::onKernelFinishRequest". 
{
    "event": "kernel.finish_request",
    "listener": "Symfony\\Bundle\\SecurityBundle\\Debug\\TraceableFirewallListener::onKernelFinishRequest"
}
DEBUG 20:15:24 event Notified event "kernel.finish_request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleAwareListener::onKernelFinishRequest". 
{
    "event": "kernel.finish_request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleAwareListener::onKernelFinishRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\DebugHandlersListener::configure"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\ValidateRequestListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ValidateRequestListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Nelmio\CorsBundle\EventListener\CorsListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Nelmio\\CorsBundle\\EventListener\\CorsListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bridge\Doctrine\Middleware\IdleConnection\Listener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bridge\\Doctrine\\Middleware\\IdleConnection\\Listener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\SessionListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\SessionListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::setDefaultLocale". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener::setDefaultLocale"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\AssetMapper\AssetMapperDevServerSubscriber::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\AssetMapper\\AssetMapperDevServerSubscriber::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\RouterListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\RouterListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleAwareListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\LocaleAwareListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bundle\SecurityBundle\Debug\TraceableFirewallListener::configureLogoutUrlGenerator". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bundle\\SecurityBundle\\Debug\\TraceableFirewallListener::configureLogoutUrlGenerator"
}
DEBUG 20:15:24 event Notified event "kernel.request" to listener "Symfony\Bundle\SecurityBundle\Debug\TraceableFirewallListener::onKernelRequest". 
{
    "event": "kernel.request",
    "listener": "Symfony\\Bundle\\SecurityBundle\\Debug\\TraceableFirewallListener::onKernelRequest"
}
DEBUG 20:15:24 event Notified event "kernel.controller" to listener "Symfony\Bundle\FrameworkBundle\DataCollector\RouterDataCollector::onKernelController". 
{
    "event": "kernel.controller",
    "listener": "Symfony\\Bundle\\FrameworkBundle\\DataCollector\\RouterDataCollector::onKernelController"
}
DEBUG 20:15:24 event Notified event "kernel.controller" to listener "Symfony\Component\HttpKernel\DataCollector\RequestDataCollector::onKernelController". 
{
    "event": "kernel.controller",
    "listener": "Symfony\\Component\\HttpKernel\\DataCollector\\RequestDataCollector::onKernelController"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\Security\Http\EventListener\IsCsrfTokenValidAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\Security\\Http\\EventListener\\IsCsrfTokenValidAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\Security\Http\EventListener\IsGrantedAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\Security\\Http\\EventListener\\IsGrantedAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\HttpKernel\EventListener\CacheAttributeListener::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\CacheAttributeListener::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Container8SDSyct\RequestPayloadValueResolverGhost01ca9cc::onKernelControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Container8SDSyct\\RequestPayloadValueResolverGhost01ca9cc::onKernelControllerArguments"
}
DEBUG 20:15:24 event Notified event "kernel.controller_arguments" to listener "Symfony\Component\HttpKernel\EventListener\ErrorListener::onControllerArguments". 
{
    "event": "kernel.controller_arguments",
    "listener": "Symfony\\Component\\HttpKernel\\EventListener\\ErrorListener::onControllerArguments"
}

Stack Trace

RuntimeError 
Twig\Error\RuntimeError:
Variable "title" does not exist in "home/about.html.twig" at line 3.

  at templates/home/about.html.twig:3
  at __TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697->{closure}()
     (var/cache/dev/twig/78/7800e71c7857c4fe07de29442f50b430.php:76)
  at __TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697->block_title(array('app' => object(AppVariable)), array('title' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_title'), 'stylesheets' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_stylesheets'), 'header' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_header'), 'body' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_body'), 'footer' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_footer'), 'javascripts' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_javascripts')))
     (vendor/twig/twig/src/Template.php:446)
  at Twig\Template->yieldBlock('title', array('app' => object(AppVariable)), array('title' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_title'), 'stylesheets' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_stylesheets'), 'header' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_header'), 'body' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_body'), 'footer' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_footer'), 'javascripts' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_javascripts')))
     (var/cache/dev/twig/0e/0ef0973b26a5132659d2c92472cb90f9.php:61)
  at __TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4->doDisplay(array('app' => object(AppVariable)), array('title' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_title'), 'stylesheets' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_stylesheets'), 'header' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_header'), 'body' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_body'), 'footer' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_footer'), 'javascripts' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_javascripts')))
     (vendor/twig/twig/src/Template.php:402)
  at Twig\Template->yield(array('app' => object(AppVariable)), array('title' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_title'), 'stylesheets' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_stylesheets'), 'header' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_header'), 'body' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_body'), 'footer' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_footer'), 'javascripts' => array(object(__TwigTemplate_fa9dafc481c91a9cc7d645b7e22cd4f4), 'block_javascripts')))
     (var/cache/dev/twig/78/7800e71c7857c4fe07de29442f50b430.php:54)
  at __TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697->doDisplay(array('app' => object(AppVariable)), array('title' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_title'), 'body' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_body')))
     (vendor/twig/twig/src/Template.php:402)
  at Twig\Template->yield(array('app' => object(AppVariable)), array('title' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_title'), 'body' => array(object(__TwigTemplate_cda5da4d1ef91dde27a8b001fd8a3697), 'block_body')))
     (vendor/twig/twig/src/Template.php:358)
  at Twig\Template->display(array())
     (vendor/twig/twig/src/Template.php:373)
  at Twig\Template->render(array())
     (vendor/twig/twig/src/TemplateWrapper.php:51)
  at Twig\TemplateWrapper->render(array())
     (vendor/twig/twig/src/Environment.php:333)
  at Twig\Environment->render('home/about.html.twig', array())
     (vendor/symfony/framework-bundle/Controller/AbstractController.php:431)
  at Symfony\Bundle\FrameworkBundle\Controller\AbstractController->doRenderView('home/about.html.twig', null, array(), 'render')
     (vendor/symfony/framework-bundle/Controller/AbstractController.php:436)
  at Symfony\Bundle\FrameworkBundle\Controller\AbstractController->doRender('home/about.html.twig', null, array(), null, 'render')
     (vendor/symfony/framework-bundle/Controller/AbstractController.php:250)
  at Symfony\Bundle\FrameworkBundle\Controller\AbstractController->render('home/about.html.twig')
     (src/Controller/HomeController.php:98)
  at App\Controller\HomeController->cosama_about()
     (vendor/symfony/http-kernel/HttpKernel.php:183)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (vendor/symfony/http-kernel/HttpKernel.php:76)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor/symfony/http-kernel/Kernel.php:182)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:29)
  at require('/home/senbill/www/vendor/autoload_runtime.php')
     (public/index.php:11)