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это мои проблемы:

сообщение об ошибке:

 Expected argument of type "AppEntityMark or null", "instance of AppEntityVoiture" given at property path "mark".  

это мои сущности:

метка сущности:

 lt;?php  namespace AppEntity;  use AppRepositoryMarkRepository; use DoctrineCommonCollectionsArrayCollection; use DoctrineCommonCollectionsCollection; use DoctrineORMMapping as ORM;  /**  * @ORMEntity(repositoryClass=MarkRepository::class)  */ class Mark {     /**  * @ORMId  * @ORMGeneratedValue  * @ORMColumn(type="integer")  */  private $id;   /**  * @ORMColumn(type="string", length=180)  */  private $nameMark;   /**  * @ORMOneToMany(targetEntity=Voiture::class, mappedBy="mark", orphanRemoval=true)  */  private $voiture;   public function __construct()  {  $this-gt;voiture = new ArrayCollection();  }   public function getId(): ?int  {  return $this-gt;id;  }   public function getNameMark(): ?string  {  return $this-gt;nameMark;  }   public function setNameMark(string $nameMark): self  {  $this-gt;nameMark = $nameMark;   return $this;  }   /**  * @return Collection|Voiture[]  */  public function getVoiture(): Collection  {  return $this-gt;voiture;  }   public function addVoiture(Voiture $voiture): self  {  if (!$this-gt;voiture-gt;contains($voiture)) {  $this-gt;voiture[] = $voiture;  $voiture-gt;setMark($this);  }   return $this;  }   //ajout method toString pour afficher mes marques  public function __toString()  {  return (string) $this -gt; getNameMark();  }  public function removeVoiture(Voiture $voiture): self  {  if ($this-gt;voiture-gt;removeElement($voiture)) {  // set the owning side to null (unless already changed)  if ($voiture-gt;getMark() === $this) {  $voiture-gt;setMark(null);  }  }   return $this;  } }  

это моя сущность Voiture:

 lt;?php  namespace AppEntity;  use AppRepositoryVoitureRepository; use DoctrineCommonCollectionsArrayCollection; use DoctrineCommonCollectionsCollection; use DoctrineORMMapping as ORM; use DateTimeInterface;  /**  * @ORMEntity(repositoryClass=VoitureRepository::class)  */ class Voiture {  /**  * @ORMId  * @ORMGeneratedValue  * @ORMColumn(type="integer")  */  private $id;   /**  * @ORMColumn(type="string", length=100)  */  private $model;   /**  * @ORMColumn(type="string", length=255)  */  private $km;   /**  * @ORMColumn(type="float")  */  private $price;   /**  * @ORMColumn(type="integer")  */  private $numbersOwners;   /**  * @ORMColumn(type="string", length=50)  */  private $engineSize;   /**  * @ORMColumn(type="string", length=50)  */  private $powerEngine;   /**  * @ORMColumn(type="string", length=35)  */  private $fuel;   /**  * @ORMColumn(type="date")  */  private $yearOfEntry;   /**  * @ORMColumn(type="string", length=80)  */  private $transmission;   /**  * @ORMColumn(type="text")  */  private $description;   /**  * @ORMColumn(type="text")  */  private $options;   /**  * @ORMOneToMany(targetEntity=Image::class, mappedBy="voiture", orphanRemoval=true)  */  private $images;   /**  * @ORMManyToOne(targetEntity=Mark::class, inversedBy="voiture")  * @ORMJoinColumn(nullable=false)  */  private $mark;  public function __toString()  {  return $this -gt; mark;  }      /**  * @ORMColumn(type="string", length=255)  */  private $coverImage;   public function __construct()  {  $this-gt;images = new ArrayCollection();  }   public function getId(): ?int  {  return $this-gt;id;  }   public function getModel(): ?string  {  return $this-gt;model;  }   public function setModel(string $model): self  {  $this-gt;model = $model;   return $this;  }   public function getKm(): ?string  {  return $this-gt;km;  }   public function setKm(string $km): self  {  $this-gt;km = $km;   return $this;  }   public function getPrice(): ?float  {  return $this-gt;price;  }   public function setPrice(float $price): self  {  $this-gt;price = $price;   return $this;  }   public function getNumbersOwners(): ?int  {  return $this-gt;numbersOwners;  }   public function setNumbersOwners(int $numbersOwners): self  {  $this-gt;numbersOwners = $numbersOwners;   return $this;  }   public function getEngineSize(): ?string  {  return $this-gt;engineSize;  }   public function setEngineSize(string $engineSize): self  {  $this-gt;engineSize = $engineSize;   return $this;  }   public function getPowerEngine(): ?string  {  return $this-gt;powerEngine;  }   public function setPowerEngine(string $powerEngine): self  {  $this-gt;powerEngine = $powerEngine;   return $this;  }   public function getFuel(): ?string  {  return $this-gt;fuel;  }   public function setFuel(string $fuel): self  {  $this-gt;fuel = $fuel;   return $this;  }   public function getYearOfEntry(): ?DateTimeInterface  {  return $this-gt;yearOfEntry;  }   public function setYearOfEntry(DateTimeInterface $yearOfEntry): self  {  $this-gt;yearOfEntry = $yearOfEntry;   return $this;  }   public function getTransmission(): ?string  {  return $this-gt;transmission;  }   public function setTransmission(string $transmission): self  {  $this-gt;transmission = $transmission;   return $this;  }   public function getDescription(): ?string  {  return $this-gt;description;  }   public function setDescription(string $description): self  {  $this-gt;description = $description;   return $this;  }   public function getOptions(): ?string  {  return $this-gt;options;  }   public function setOptions(string $options): self  {  $this-gt;options = $options;   return $this;  }   /**  * @return Collection|Image[]  */  public function getImages(): Collection  {  return $this-gt;images;  }   public function addImage(Image $image): self  {  if (!$this-gt;images-gt;contains($image)) {  $this-gt;images[] = $image;  $image-gt;setVoiture($this);  }   return $this;  }   public function removeImage(Image $image): self  {  if ($this-gt;images-gt;removeElement($image)) {  // set the owning side to null (unless already changed)  if ($image-gt;getVoiture() === $this) {  $image-gt;setVoiture(null);  }  }   return $this;  }   public function getMark(): ?Mark  {  return $this-gt;mark;  }    public function setMark(?Mark $mark): self  {  $this-gt;mark = $mark;    return $this;  }   public function getCoverImage(): ?string  {  return $this-gt;coverImage;  }   public function setCoverImage(string $coverImage): self  {  $this-gt;coverImage = $coverImage;   return $this;  } }  

and my formBuilder:

 lt;?php  namespace AppForm;  use AppEntityMark; use AppEntityVoiture; use AppFormImageCarType; use SymfonyComponentFormAbstractType; use SymfonyComponentFormFormBuilderInterface; use SymfonyBridgeDoctrineFormTypeEntityType; use SymfonyComponentOptionsResolverOptionsResolver; use SymfonyComponentFormExtensionCoreTypeUrlType; use SymfonyComponentFormExtensionCoreTypeDateType; use SymfonyComponentFormExtensionCoreTypeTextType; use SymfonyComponentFormExtensionCoreTypeMoneyType; use SymfonyComponentFormExtensionCoreTypeIntegerType; use SymfonyComponentFormExtensionCoreTypeCollectionType;  class NewCarType extends AbstractType {  /**  * function de config pour mes champs  *  * @param string $label  * @param string $placeholder  * @param array $options  * @return array  */  private function getConfiguration($label,$placeholder,$options=[]){  return array_merge_recursive([  'label' =gt; $label,  'attr' =gt; [  'placeholder'=gt; $placeholder,  'class' =gt; 'form-control mb-1'  ]  ],$options);  }  public function buildForm(FormBuilderInterface $builder, array $options): void  {  $builder  -gt;add('model', TextType::class,$this-gt;getConfiguration('Model de la voiture:','bmw-z'))  -gt;add('km', TextType::class, $this-gt; getConfiguration('Kilométrage de la voiture:','42000'))  -gt;add('price',MoneyType::class, $this-gt; getConfiguration('Prix de la voiture:','5500'))  -gt;add('numbersOwners',IntegerType::class,$this-gt; getConfiguration('Nombre de propriétaire:','0'))  -gt;add('engineSize',IntegerType::class,$this-gt; getConfiguration('Cylindrée:','400'))  -gt;add('powerEngine',IntegerType::class,$this-gt; getConfiguration('Puissance du moteur:','200'))  -gt;add('fuel',TextType::class, $this-gt; getConfiguration('Carburant:','diesel/Essence'))  -gt;add('yearOfEntry',DateType::class, $this-gt;getConfiguration('Date de mise en circulation:',false))  -gt;add('transmission',TextType::class, $this-gt; getConfiguration('Transmission:','Automatique/Manuelle'))  -gt;add('description',TextType::class, $this-gt; getConfiguration('Description du véhicule:','description véhicule..'))  -gt;add('options',TextType::class, $this-gt; getConfiguration('Options du véhicule:','Gps,cruise-control...'))  -gt;add('coverImage',UrlType::class, $this-gt; getConfiguration('Ajouter une url d'image:','https://picsum.photos/200/300'))    -gt;add('mark',EntityType::class, $this-gt;getConfiguration('Choix de la marque:',false,[  'class' =gt; Voiture::class,  'choice_label' =gt; 'mark'  ]))  -gt;add('images',CollectionType::class,[  'entry_type' =gt; ImageCarType::class,  'allow_add' =gt; true,  'allow_delete' =gt; true  ])    ;  }   public function configureOptions(OptionsResolver $resolver): void  {  $resolver-gt;setDefaults([  'data_class' =gt; Voiture::class,  ]);  } }  

my Controller newcar:

public function createCar(Request $request, EntityManagerInterface $manager){

 $carNew = new Voiture();  

// on met deux images pour voir si tout c’est bien passé quand et voir si ça m’affiche bien $title = $request-gt;request-gt;get(‘addVoiture’); dump($title);

 $image1 = new Image();  $image1-gt;setNameImg('http://placehold.it/400x200')  -gt;setCaption('Titre 1');    $carNew-gt;addImage($image1);  $image2 = new Image();  $image2-gt;setNameImg('http://placehold.it/400x200')  -gt;setCaption('Titre 2');  $carNew-gt;addImage($image2);      $form = $this-gt;createForm(NewCarType::class,$carNew);  $form -gt;handleRequest($request);    // quand je vais vérifier si le form est envoyé et si il est valide  if($form -gt; isSubmitted() amp;amp; $form -gt; isValid()){  foreach($carNew-gt;getImages() as $image){  $image-gt;setVoiture($carNew);  $manager-gt;persist($image);  }  $manager-gt;flush();   return $this-gt;render('show_room/{id}.html.twig');  }  return $this-gt;render('show_room/newcar.html.twig',[  'carForm' =gt; $form-gt;createView()  ]); }  

где же проблемы?