Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/composer/autoload_real.php" at line 78. (500 Internal Server Error)

Exception

RuntimeException

in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php (line 132)

if (\PHP_SESSION_ACTIVE === session_status()) {
throw new \RuntimeException('Failed to start the session: already started by PHP.');
}
if (filter_var(\ini_get('session.use_cookies'), \FILTER_VALIDATE_BOOL) && headers_sent($file, $line)) {
throw new \RuntimeException(sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line));
}
$sessionId = $_COOKIE[session_name()] ?? null;
/*
* Explanation of the session ID regular expression: `/^[a-zA-Z0-9,-]{22,250}$/`.

in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php -> start (line 311)

}
if (!$this->started && $this->saveHandler->isActive()) {
$this->loadSession();
} elseif (!$this->started) {
$this->start();
}
return $this->bags[$name];
}

in vendor/symfony/http-foundation/Session/Session.php -> getBag (line 222)

$this->storage->registerBag(new SessionBagProxy($bag, $this->data, $this->usageIndex, $this->usageReporter));
}
public function getBag(string $name): SessionBagInterface
{
$bag = $this->storage->getBag($name);
return method_exists($bag, 'getBag') ? $bag->getBag() : $bag;
}
/**

in vendor/symfony/http-foundation/Session/Session.php -> getBag (line 242)

*
* Note that this method was added to help with IDE autocompletion.
*/
private function getAttributeBag(): AttributeBagInterface
{
return $this->getBag($this->attributeName);
}
}

in vendor/symfony/http-foundation/Session/Session.php -> getAttributeBag (line 77)

/**
* @return void
*/
public function set(string $name, mixed $value)
{
$this->getAttributeBag()->set($name, $value);
}
public function all(): array
{
return $this->getAttributeBag()->all();

in vendor/symfony/web-profiler-bundle/Controller/ProfilerController.php -> set (line 267)

$profileType = $request->query->get('type', 'request');
if (!$request->attributes->getBoolean('_stateless') && $request->hasSession()) {
$session = $request->getSession();
$session->set('_profiler_search_ip', $ip);
$session->set('_profiler_search_method', $method);
$session->set('_profiler_search_status_code', $statusCode);
$session->set('_profiler_search_url', $url);
$session->set('_profiler_search_start', $start);
$session->set('_profiler_search_end', $end);

in vendor/symfony/http-kernel/HttpKernel.php -> searchAction (line 181)

$this->dispatcher->dispatch($event, KernelEvents::CONTROLLER_ARGUMENTS);
$controller = $event->getController();
$arguments = $event->getArguments();
// call controller
$response = $controller(...$arguments);
// view
if (!$response instanceof Response) {
$event = new ViewEvent($this, $request, $type, $response, $event);
$this->dispatcher->dispatch($event, KernelEvents::VIEW);

in vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 76)

$request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
$this->requestStack->push($request);
$response = null;
try {
return $response = $this->handleRaw($request, $type);
} catch (\Throwable $e) {
if ($e instanceof \Error && !$this->handleAllThrowables) {
throw $e;
}

in vendor/symfony/http-kernel/Kernel.php -> handle (line 197)

$this->boot();
++$this->requestStackSize;
$this->resetServices = true;
try {
return $this->getHttpKernel()->handle($request, $type, $catch);
} finally {
--$this->requestStackSize;
}
}

in vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php -> handle (line 35)

) {
}
public function run(): int
{
$response = $this->kernel->handle($this->request);
if (Kernel::VERSION_ID >= 60400) {
$response->send(false);
if (\function_exists('fastcgi_finish_request') && !$this->debug) {

in vendor/autoload_runtime.php -> run (line 29)

$app = $app(...$args);
exit(
$runtime
->getRunner($app)
->run()
);

require_once('/var/www/bet-analyzer/vendor/autoload_runtime.php') in public/index.php (line 5)

<?php
use App\Kernel;
require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
return function (array $context) {
return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
};

Logs 1

Level	Channel	Message
CRITICAL 16:30:09	request	Uncaught PHP Exception RuntimeException: "Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/composer/autoload_real.php" at line 78." at NativeSessionStorage.php line 132 { "exception": {} }

Stack Trace

RuntimeException
RuntimeException: Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/composer/autoload_real.php" at line 78. at vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:132 at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() (vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:311) at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->getBag('attributes') (vendor/symfony/http-foundation/Session/Session.php:222) at Symfony\Component\HttpFoundation\Session\Session->getBag('attributes') (vendor/symfony/http-foundation/Session/Session.php:242) at Symfony\Component\HttpFoundation\Session\Session->getAttributeBag() (vendor/symfony/http-foundation/Session/Session.php:77) at Symfony\Component\HttpFoundation\Session\Session->set('_profiler_search_ip', null) (vendor/symfony/web-profiler-bundle/Controller/ProfilerController.php:267) at Symfony\Bundle\WebProfilerBundle\Controller\ProfilerController->searchAction(object(Request)) (vendor/symfony/http-kernel/HttpKernel.php:181) 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:197) 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_once('/var/www/bet-analyzer/vendor/autoload_runtime.php') (public/index.php:5)

RuntimeException

RuntimeException:
Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/composer/autoload_real.php" at line 78.

  at vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:132
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start()
     (vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:311)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->getBag('attributes')
     (vendor/symfony/http-foundation/Session/Session.php:222)
  at Symfony\Component\HttpFoundation\Session\Session->getBag('attributes')
     (vendor/symfony/http-foundation/Session/Session.php:242)
  at Symfony\Component\HttpFoundation\Session\Session->getAttributeBag()
     (vendor/symfony/http-foundation/Session/Session.php:77)
  at Symfony\Component\HttpFoundation\Session\Session->set('_profiler_search_ip', null)
     (vendor/symfony/web-profiler-bundle/Controller/ProfilerController.php:267)
  at Symfony\Bundle\WebProfilerBundle\Controller\ProfilerController->searchAction(object(Request))
     (vendor/symfony/http-kernel/HttpKernel.php:181)
  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:197)
  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_once('/var/www/bet-analyzer/vendor/autoload_runtime.php')
     (public/index.php:5)

Symfony Exception

RuntimeException

HTTP 500 Internal Server Error

Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/composer/autoload_real.php" at line 78.

Exception

RuntimeException

Logs 1

Stack Trace