Symfony Exception

ORMInvalidArgumentException

HTTP 500 Internal Server Error

EntityManager#remove() expects parameter 1 to be an entity object, NULL given.

Exception

Doctrine\ORM\ ORMInvalidArgumentException

  1.      *
  2.      * @return ORMInvalidArgumentException
  3.      */
  4.     public static function invalidObject($context$given$parameterIndex 1)
  5.     {
  6.         return new self($context ' expects parameter ' $parameterIndex .
  7.             ' to be an entity object, ' gettype($given) . ' given.');
  8.     }
  9.     /** @return ORMInvalidArgumentException */
  10.     public static function invalidCompositeIdentifier()
  1.      * @throws ORMException
  2.      */
  3.     public function remove($entity)
  4.     {
  5.         if (! is_object($entity)) {
  6.             throw ORMInvalidArgumentException::invalidObject('EntityManager#remove()'$entity);
  7.         }
  8.         $this->errorIfClosed();
  9.         $this->unitOfWork->remove($entity);
EntityManager->remove() in src/Controller/ArticleController.php (line 2107)
  1.  
  2.     
  3.      #[Route('article/deletearticle/{id}'name'deletearticle')]
  4.     public function deletearticleAction(ArticleRepository $articlerep,$id): Response 
  5.         $article$articlerep->find($id);
  6.         $this->entityManager->remove($article);
  7.         $this->entityManager->flush();
  8.         $this->addFlash('success'"Article has been deleted");
  9.         return $this->redirectToRoute('article_create');
  10.     }
in vendor/symfony/http-kernel/HttpKernel.php -> deletearticleAction (line 181)
  1.         $this->dispatcher->dispatch($eventKernelEvents::CONTROLLER_ARGUMENTS);
  2.         $controller $event->getController();
  3.         $arguments $event->getArguments();
  4.         // call controller
  5.         $response $controller(...$arguments);
  6.         // view
  7.         if (!$response instanceof Response) {
  8.             $event = new ViewEvent($this$request$type$response$event);
  9.             $this->dispatcher->dispatch($eventKernelEvents::VIEW);
  1.         $request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
  2.         $this->requestStack->push($request);
  3.         $response null;
  4.         try {
  5.             return $response $this->handleRaw($request$type);
  6.         } catch (\Throwable $e) {
  7.             if ($e instanceof \Error && !$this->handleAllThrowables) {
  8.                 throw $e;
  9.             }
  1.         $this->boot();
  2.         ++$this->requestStackSize;
  3.         $this->resetServices true;
  4.         try {
  5.             return $this->getHttpKernel()->handle($request$type$catch);
  6.         } finally {
  7.             --$this->requestStackSize;
  8.         }
  9.     }
  1.     ) {
  2.     }
  3.     public function run(): int
  4.     {
  5.         $response $this->kernel->handle($this->request);
  6.         if (Kernel::VERSION_ID >= 60400) {
  7.             $response->send(false);
  8.             if (\function_exists('fastcgi_finish_request') && !$this->debug) {
in vendor/autoload_runtime.php -> run (line 29)
  1. $app $app(...$args);
  2. exit(
  3.     $runtime
  4.         ->getRunner($app)
  5.         ->run()
  6. );
require_once('/usr/www/users/smartm/vendor/autoload_runtime.php') in public/index.php (line 5)
  1. <?php
  2. umask(0000);
  3. use App\Kernel;
  4. require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
  5. return function (array $context) {
  6.     return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
  7. };

Stack Trace

ORMInvalidArgumentException
Doctrine\ORM\ORMInvalidArgumentException:
EntityManager#remove() expects parameter 1 to be an entity object, NULL given.

  at vendor/doctrine/orm/lib/Doctrine/ORM/ORMInvalidArgumentException.php:190
  at Doctrine\ORM\ORMInvalidArgumentException::invalidObject()
     (vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php:690)
  at Doctrine\ORM\EntityManager->remove()
     (src/Controller/ArticleController.php:2107)
  at App\Controller\ArticleController->deletearticleAction()
     (vendor/symfony/http-kernel/HttpKernel.php:181)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw()
     (vendor/symfony/http-kernel/HttpKernel.php:76)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (vendor/symfony/http-kernel/Kernel.php:197)
  at Symfony\Component\HttpKernel\Kernel->handle()
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:29)
  at require_once('/usr/www/users/smartm/vendor/autoload_runtime.php')
     (public/index.php:5)