Failed to start the session because headers have already been sent

Created on 15 October 2019, about 5 years ago
Updated 1 March 2023, almost 2 years ago

Receiving the following errors upon recent install.

RuntimeException: Failed to start the session because headers have already been sent by "/home/mysite/www/vendor/symfony/http-foundation/Response.php" at line 361. in Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() (line 145 of /home/mysite/www/vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php) #0 /home/mysite/www/core/lib/Drupal/Core/Session/SessionManager.php(164): Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() #1 /home/mysite/www/core/lib/Drupal/Core/Session/SessionManager.php(195): Drupal\Core\Session\SessionManager->startNow() #2 /home/mysite/www/vendor/symfony/http-foundation/Session/Session.php(196): Drupal\Core\Session\SessionManager->save() #3 /home/mysite/www/core/lib/Drupal/Core/StackMiddleware/Session.php(60): Symfony\Component\HttpFoundation\Session\Session->save() #4 /home/mysite/www/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #5 /home/mysite/www/core/modules/ban/src/BanMiddleware.php(50): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #6 /home/mysite/www/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\ban\BanMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #7 /home/mysite/www/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #8 /home/mysite/www/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #9 /home/mysite/www/core/lib/Drupal/Core/DrupalKernel.php(693): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #10 /home/mysite/www/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #11 {main}.

🐛 Bug report
Status

Fixed

Version

2.0

Component

Code

Created by

🇹🇼Taiwan EurekaWeb

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