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Warning: Cannot modify header information - headers already sent by (output started at /home/masaepz/www/expense/vendor/symfony/http-foundation/Response.php:393) (500 Internal Server Error)

Symfony Exception

Symfony Docs

ErrorException

HTTP 500 Internal Server Error

Warning: Cannot modify header information - headers already sent by (output started at /home/masaepz/www/expense/vendor/symfony/http-foundation/Response.php:393)

Exception

ErrorException

Show exception properties 
ErrorException {#1578
  #severity: E_WARNING
}
in /home/masaepz/www/expense/vendor/symfony/http-foundation/Response.php (line 328)
  1. {
  2. // headers have already been sent by the developer
  3. if (headers_sent()) {
  4. if (!\in_array(\PHP_SAPI, ['cli', 'phpdbg', 'embed'], true)) {
  5. $statusCode ??= $this->statusCode;
  6. header(\sprintf('HTTP/%s %s %s', $this->version, $statusCode, $this->statusText), true, $statusCode);
  7. }
  9. return $this;
  10. }
in /home/masaepz/www/expense/vendor/symfony/http-kernel/HttpKernel.php -> sendHeaders (line 144)
  1. if ($pop) {
  2. $this->requestStack->pop();
  3. }
  4. }
  6. $response->sendHeaders();
  7. $response->sendContent();
  9. $this->terminate($request, $response);
  10. }
in /home/masaepz/www/expense/vendor/symfony/http-kernel/EventListener/DebugHandlersListener.php -> terminateWithException (line 77)
  1. if ($hasRun) {
  2. throw $e;
  3. }
  5. $hasRun = true;
  6. $kernel->terminateWithException($e, $request);
  7. };
  8. }
  9. } elseif ($event instanceof ConsoleEvent && $app = $event->getCommand()->getApplication()) {
  10. $output = $event->getOutput();
  11. if ($output instanceof ConsoleOutputInterface) {
in /home/masaepz/www/expense/vendor/symfony/error-handler/ErrorHandler.php :: {closure:Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure():71} (line 520)
  1. $this->exceptionHandler = null;
  2. }
  4. try {
  5. if (null !== $exceptionHandler) {
  6. $exceptionHandler($exception);
  8. return;
  9. }
  10. $handlerException ??= $exception;
  11. } catch (\Throwable $handlerException) {
ErrorHandler->handleException(object(ValueError))

Stack Trace

ErrorException 
ErrorException:
Warning: Cannot modify header information - headers already sent by (output started at /home/masaepz/www/expense/vendor/symfony/http-foundation/Response.php:393)

  at /home/masaepz/www/expense/vendor/symfony/http-foundation/Response.php:328
  at Symfony\Component\HttpFoundation\Response->sendHeaders()
     (/home/masaepz/www/expense/vendor/symfony/http-kernel/HttpKernel.php:144)
  at Symfony\Component\HttpKernel\HttpKernel->terminateWithException(object(ValueError), object(Request))
     (/home/masaepz/www/expense/vendor/symfony/http-kernel/EventListener/DebugHandlersListener.php:77)
  at Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::{closure:Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure():71}(object(ValueError))
     (/home/masaepz/www/expense/vendor/symfony/error-handler/ErrorHandler.php:520)
  at Symfony\Component\ErrorHandler\ErrorHandler->handleException(object(ValueError))