Symfony, Request cannot find the service [closed]

When I try to run my code I get the following error message :

Cannot autowire argument $request of “AppControllerAppController::formulaire()”: it references class “symfonyComponentHttpFoundationRequest” but no such service exists.

I don’t understand as I followed tutorial and checked on symfony documentation and it looks fine!

my code is :

/**
     * @Route("/form", name="form")
     */
    public function formulaire(Request $request)
    {
        $application = new Applications();
        $candidat = new Candidats();
        $annexe = new Annexes();

        $formAnnexe = $this->createFormBuilder($annexe)
                            ->add("fichier")
                            ->getForm();

        $formCandidat = $this->createFormBuilder($candidat)
                            ->add("nom")
                            ->add("prenom")
                            ->add("email")
                            ->getForm();

        $form = $this->createFormBuilder($application)
                    ->add("poste", ChoiceType::class, [
                        'choices'  => [
                        'Choisissez un poste ...' => null,
                        'Chef de Projet' => 'Chef de Projet',
                        'Secrétaire' => 'Secrétaire',
                        'Assistant' => 'Assistant',
                        ],
                    ])
                    ->add('pdf', FileType::class, [
                        'label' => 'Fiche de candidature (PDF)',
        
                        // unmapped means that this field is not associated to any entity property
                        'mapped' => false,
        
                        // make it optional so you don't have to re-upload the PDF file
                        // every time you edit the Product details
                        'required' => false,

                        'constraints' => [
                            new File([
                                'maxSize' => '1024k',
                                'mimeTypes' => [
                                    'application/pdf',
                                    'application/x-pdf',
                                ],
                                'mimeTypesMessage' => 'Please upload a valid PDF document',
                            ])
                        ]
                    ])
                    ->getForm();

        $form->handleRequest($request);
        return $this->render('app/form.html.twig', [
            
            'form' => $form->createView(),
            'formCandidat' => $formCandidat->createView(),
            'formAnnexe' => $formAnnexe->createView(),
        
            
        ]);
    }
   
}

And I use the followings :

use SymfonyBundleFrameworkBundleControllerAbstractController;
use SymfonyComponentHttpFoundationResponse;
use SymfonyComponentRoutingAnnotationRoute;
use AppEntityApplications;
use AppEntityCandidats;
use AppEntityAnnexes;
use symfonyComponentHttpFoundationRequest;
use DoctrineCommonCersistenceObjectManager;
use SymfonyComponentFormExtensionCoreTypeChoiceType;
use SymfonyComponentFormExtensionCoreTypeFileType;
use SymfonyComponentValidatorConstraintsFile;
use SymfonyComponentFormAbstractType;
use SymfonyComponentOptionsResolverOptionsResolver;

Everthing was fine until I added (Request $request)

Does anyone knows what is wrong ?

Answer

there is a typo when you import the Request class. you import from this namespace use symfonyComponentHttpFoundationRequest; with lower-case s. any import namespaces are case-sensitive. use this namespace. use SymfonyComponentHttpFoundationRequest;