[Symfony] FileLoader mit dem "annotation type" bekanntmachen - wie?

[AFX]

Ich habe eine symfony -App, dort habe ich in die routes.yaml den Controller eingetragen, der aber nicht erkannt wird.

Hier die Datei ./config/routes/routes.yaml:

# config/routes.yaml

app:
    path: /
    controller: App\Controller\StudentController::newAction

Hier der Controller ./src/Controller/StudentController.php

<?php  
namespace AppBundle\Controller;  

use AppBundle\Entity\StudentForm; 
use AppBundle\Form\FormValidationType; 

use Symfony\Bundle\FrameworkBundle\Controller\Controller; 
use Symfony\Component\HttpFoundation\Request; 
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route; 

use Symfony\Component\HttpFoundation\Response; 
use Symfony\Component\Form\Extension\Core\Type\TextType; 
use Symfony\Component\Form\Extension\Core\Type\DateType; 
use Symfony\Component\Form\Extension\Core\Type\SubmitType; 
use Symfony\Component\Form\Extension\Core\Type\ChoiceType; 
use Symfony\Component\Form\Extension\Core\Type\PasswordType; 
use Symfony\Component\Form\Extension\Core\Type\RangeType; 
use Symfony\Component\Form\Extension\Core\Type\EmailType; 
use Symfony\Component\Form\Extension\Core\Type\CheckboxType; 
use Symfony\Component\Form\Extension\Core\Type\ButtonType; 
use Symfony\Component\Form\Extension\Core\Type\TextareaType; 
use Symfony\Component\Form\Extension\Core\Type\PercentType; 
use Symfony\Component\Form\Extension\Core\Type\RepeatedType;  

class StudentController extends Controller {    
   /** 
      * @Route("/student/new") 
   */ 
   public function newAction(Request $request) {  
      $stud = new StudentForm(); 
      $form = $this->createFormBuilder($stud) 
         ->add('studentName', TextType::class)
         ->add('studentId', TextType::class) 
         ->add('password', RepeatedType::class, array( 
            'type' => PasswordType::class, 
            'invalid_message' => 'The password fields 
            must match.', 'options' => array('attr' => array('class' => 'password-field')), 
            'required' => true, 'first_options'  => array('label' => 'Password'), 
            'second_options' => array('label' => 'Re-enter'), 
         )) 

         ->add('address', TextareaType::class) 
         ->add('joined', DateType::class, array( 
               'widget' => 'choice', 
         )) 

         ->add('gender', ChoiceType::class, array( 
            'choices'  => array( 
               'Male' => true, 
               'Female' => false, 
            ), 
         )) 

         ->add('email', EmailType::class) 
         ->add('marks', PercentType::class) 
         ->add('sports', CheckboxType::class, array( 
            'label'    => 'Are you interested in sports?', 'required' => false, 
         )) 

         ->add('save', SubmitType::class, array('label' => 'Submit')) 
         ->getForm();  
         return $this->render('student/new.html.twig', array( 
            'form' => $form->createView(), 
         )); 
   } 
}

Jetzt motzt symfony rum: Class "AppBundle\Controller\StudentController" does not exist in C:\....../config\../src/Controller/ (which is being imported from "C:\...../config/routes.yaml"). Make sure there is a loader supporting the "annotation" type.

Wenn ich in der routes.yaml-Datei folgende Zeile hinzufüge…

type: annotation

... ändert sich nix.

Ich konnte auch durch das Anlegen einer annotations.yaml nichts ändern. Kennt jemand dieses Problem?

[Zeichen32]

Der Standwert der routes.yaml wäre das folgende. Damit werden automatisch alle Controller erkannt.
Den Rest steuerst du über die Annotations in deinen Controllern.

controllers:
    resource: ../../src/Controller/  # ../src/Controller falls du die routes.yaml nicht im Unterordner config/routes/routes.yaml hast.
    type: annotation