^ "Something wrong"
Failed to start the session because headers have already been sent by "/home/admin/web/softdro.com/public_html/vendor/symfony/var-dumper/Dumper/AbstractDumper.php" at line 180. (500 Internal Server Error)

Symfony Exception

Symfony Docs

RuntimeException

HTTP 500 Internal Server Error

Failed to start the session because headers have already been sent by "/home/admin/web/softdro.com/public_html/vendor/symfony/var-dumper/Dumper/AbstractDumper.php" at line 180.

Exception

RuntimeException

in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php (line 152)
  1.         if (\PHP_SESSION_ACTIVE === session_status()) {
  2.             throw new \RuntimeException('Failed to start the session: already started by PHP.');
  3.         }
  5.         if (filter_var(\ini_get('session.use_cookies'), \FILTER_VALIDATE_BOOLEAN) && headers_sent($file, $line)) {
  6.             throw new \RuntimeException(sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line));
  7.         }
  9.         $sessionId = $_COOKIE[session_name()] ?? null;
  10.         /*
  11.          * Explanation of the session ID regular expression: `/^[a-zA-Z0-9,-]{22,250}$/`.
in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php->start (line 359)
  1.         }
  3.         if (!$this->started && $this->saveHandler->isActive()) {
  4.             $this->loadSession();
  5.         } elseif (!$this->started) {
  6.             $this->start();
  7.         }
  9.         return $this->bags[$name];
  10.     }
in vendor/symfony/http-foundation/Session/Session.php->getBag (line 251)
  1.     /**
  2.      * {@inheritdoc}
  3.      */
  4.     public function getBag($name)
  5.     {
  6.         $bag = $this->storage->getBag($name);
  8.         return method_exists($bag, 'getBag') ? $bag->getBag() : $bag;
  9.     }
  11.     /**
in vendor/symfony/http-foundation/Session/Session.php->getBag (line 273)
  1.      *
  2.      * Note that this method was added to help with IDE autocompletion.
  3.      */
  4.     private function getAttributeBag(): AttributeBagInterface
  5.     {
  6.         return $this->getBag($this->attributeName);
  7.     }
  8. }
in vendor/symfony/http-foundation/Session/Session.php->getAttributeBag (line 81)
  1.     /**
  2.      * {@inheritdoc}
  3.      */
  4.     public function set($name, $value)
  5.     {
  6.         $this->getAttributeBag()->set($name, $value);
  7.     }
  9.     /**
  10.      * {@inheritdoc}
  11.      */
in vendor/symfony/security-http/Util/TargetPathTrait.php->set (line 28)
  1.      *
  2.      * Usually, you do not need to set this directly.
  3.      */
  4.     private function saveTargetPath(SessionInterface $session, string $providerKey, string $uri)
  5.     {
  6.         $session->set('_security.'.$providerKey.'.target_path', $uri);
  7.     }
  9.     /**
  10.      * Returns the URL (if any) the user visited that forced them to login.
  11.      */
in vendor/symfony/security-http/Firewall/ExceptionListener.php->saveTargetPath (line 231)
  2.     protected function setTargetPath(Request $request)
  3.     {
  4.         // session isn't required when using HTTP basic authentication mechanism for example
  5.         if ($request->hasSession() && $request->isMethodSafe() && !$request->isXmlHttpRequest()) {
  6.             $this->saveTargetPath($request->getSession(), $this->providerKey, $request->getUri());
  7.         }
  8.     }
  9. }
in vendor/symfony/security-http/Firewall/ExceptionListener.php->setTargetPath (line 204)
  1.         if (null !== $this->logger) {
  2.             $this->logger->debug('Calling Authentication entry point.');
  3.         }
  5.         if (!$this->stateless) {
  6.             $this->setTargetPath($request);
  7.         }
  9.         if ($authException instanceof AccountStatusException) {
  10.             // remove the security token to prevent infinite redirect loops
  11.             $this->tokenStorage->setToken(null);
in vendor/symfony/security-http/Firewall/ExceptionListener.php->startAuthentication (line 149)
  2.             try {
  3.                 $insufficientAuthenticationException = new InsufficientAuthenticationException('Full authentication is required to access this resource.', 0, $exception);
  4.                 $insufficientAuthenticationException->setToken($token);
  6.                 $event->setResponse($this->startAuthentication($event->getRequest(), $insufficientAuthenticationException));
  7.             } catch (\Exception $e) {
  8.                 $event->setThrowable($e);
  9.             }
  11.             return;
in vendor/symfony/security-http/Firewall/ExceptionListener.php->handleAccessDeniedException (line 102)
  2.                 return;
  3.             }
  5.             if ($exception instanceof AccessDeniedException) {
  6.                 $this->handleAccessDeniedException($event, $exception);
  8.                 return;
  9.             }
  11.             if ($exception instanceof LazyResponseException) {
in vendor/symfony/event-dispatcher/Debug/WrappedListener.php->onKernelException (line 126)
  1.         $this->called = true;
  2.         $this->priority = $dispatcher->getListenerPriority($eventName, $this->listener);
  4.         $e = $this->stopwatch->start($this->name, 'event_listener');
  6.         ($this->optimizedListener ?? $this->listener)($event, $eventName, $dispatcher);
  8.         if ($e->isStarted()) {
  9.             $e->stop();
  10.         }
in vendor/symfony/event-dispatcher/EventDispatcher.php->__invoke (line 264)
  1.     {
  2.         foreach ($listeners as $listener) {
  3.             if ($event->isPropagationStopped()) {
  4.                 break;
  5.             }
  6.             $listener($event, $eventName, $this);
  7.         }
  8.     }
  10.     /**
  11.      * Sorts the internal list of listeners for the given event by priority.
in vendor/symfony/event-dispatcher/EventDispatcher.php->doDispatch (line 239)
  1.      * @param object     $event     The event object to pass to the event handlers/listeners
  2.      */
  3.     protected function callListeners(iterable $listeners, string $eventName, $event)
  4.     {
  5.         if ($event instanceof Event) {
  6.             $this->doDispatch($listeners, $eventName, $event);
  8.             return;
  9.         }
  11.         $stoppable = $event instanceof ContractsEvent || $event instanceof StoppableEventInterface;
in vendor/symfony/event-dispatcher/EventDispatcher.php->callListeners (line 73)
  1.         } else {
  2.             $listeners = $this->getListeners($eventName);
  3.         }
  5.         if ($listeners) {
  6.             $this->callListeners($listeners, $eventName, $event);
  7.         }
  9.         return $event;
  10.     }
in vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php->dispatch (line 168)
  1.         try {
  2.             $this->beforeDispatch($eventName, $event);
  3.             try {
  4.                 $e = $this->stopwatch->start($eventName, 'section');
  5.                 try {
  6.                     $this->dispatcher->dispatch($event, $eventName);
  7.                 } finally {
  8.                     if ($e->isStarted()) {
  9.                         $e->stop();
  10.                     }
  11.                 }
in vendor/symfony/http-kernel/HttpKernel.php->dispatch (line 229)
  1.      * @throws \Exception
  2.      */
  3.     private function handleThrowable(\Throwable $e, Request $request, int $type): Response
  4.     {
  5.         $event = new ExceptionEvent($this, $request, $type, $e);
  6.         $this->dispatcher->dispatch($event, KernelEvents::EXCEPTION);
  8.         // a listener might have replaced the exception
  9.         $e = $event->getThrowable();
  11.         if (!$event->hasResponse()) {
in vendor/symfony/http-kernel/HttpKernel.php->handleThrowable (line 92)
  1.                 $this->finishRequest($request, $type);
  3.                 throw $e;
  4.             }
  6.             return $this->handleThrowable($e, $request, $type);
  7.         } finally {
  8.             $this->requestStack->pop();
  9.         }
  10.     }
in vendor/symfony/http-kernel/Kernel.php->handle (line 201)
  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.     }
Kernel->handle() in public/index.php (line 25)
  1.     Request::setTrustedHosts([$trustedHosts]);
  2. }
  4. $kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
  5. $request = Request::createFromGlobals();
  6. $response = $kernel->handle($request);
  7. $response->send();
  8. $kernel->terminate($request, $response);

Logs

No log messages

Stack Trace

RuntimeException 

RuntimeException:
Failed to start the session because headers have already been sent by "/home/admin/web/softdro.com/public_html/vendor/symfony/var-dumper/Dumper/AbstractDumper.php" at line 180.

  at vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:152
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start()
     (vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:359)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->getBag()
     (vendor/symfony/http-foundation/Session/Session.php:251)
  at Symfony\Component\HttpFoundation\Session\Session->getBag()
     (vendor/symfony/http-foundation/Session/Session.php:273)
  at Symfony\Component\HttpFoundation\Session\Session->getAttributeBag()
     (vendor/symfony/http-foundation/Session/Session.php:81)
  at Symfony\Component\HttpFoundation\Session\Session->set()
     (vendor/symfony/security-http/Util/TargetPathTrait.php:28)
  at Symfony\Component\Security\Http\Firewall\ExceptionListener->saveTargetPath()
     (vendor/symfony/security-http/Firewall/ExceptionListener.php:231)
  at Symfony\Component\Security\Http\Firewall\ExceptionListener->setTargetPath()
     (vendor/symfony/security-http/Firewall/ExceptionListener.php:204)
  at Symfony\Component\Security\Http\Firewall\ExceptionListener->startAuthentication()
     (vendor/symfony/security-http/Firewall/ExceptionListener.php:149)
  at Symfony\Component\Security\Http\Firewall\ExceptionListener->handleAccessDeniedException()
     (vendor/symfony/security-http/Firewall/ExceptionListener.php:102)
  at Symfony\Component\Security\Http\Firewall\ExceptionListener->onKernelException()
     (vendor/symfony/event-dispatcher/Debug/WrappedListener.php:126)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:264)
  at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:239)
  at Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
     (vendor/symfony/event-dispatcher/EventDispatcher.php:73)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
     (vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php:168)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch()
     (vendor/symfony/http-kernel/HttpKernel.php:229)
  at Symfony\Component\HttpKernel\HttpKernel->handleThrowable()
     (vendor/symfony/http-kernel/HttpKernel.php:92)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (vendor/symfony/http-kernel/Kernel.php:201)
  at Symfony\Component\HttpKernel\Kernel->handle()
     (public/index.php:25)