Symfony Autowiring注入失败：CompanyController依赖注入报错修复求助

错误信息 #

HTTP 500 Internal Server Error Controller
"App\Controller\CompanyController::edit" requires the "$company"
argument that could not be resolved. Cannot autowire argument
$company of "App\Controller\CompanyController:edit()": it needs an
instance of "App\Entity\Company" but this type has been excluded in
"config/services.yaml.

控制器代码 #

class CompanyController extends AbstractController
{
   // ....

#[Route('/company/edit/{slug}', name: 'company_edit', methods: ['GET', 'POST'])]
public function edit(Company $company, Request $request, EntityManagerInterface $em): Response
{
    $user = $this->getUser();

    $this->denyAccessUnlessGranted('IS_AUTHENTICATED_REMEMBERED');

    // dd($company);
    $form = $this->createForm(CompanyType::class, $company);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        // dd($company);
        foreach ($company->getCustomers() as $customer) {
            $customer->setIsActive(true);
        }
        $company->setIsActive(true);

        $em->persist($company->setUser($user));
        $em->flush();
        $this->addFlash('info', 'Société modifié avec succès');

        return $this->redirectToRoute('company');
    }

    return $this->render('company/edit.html.twig', [
        'company' => $company,
        'form' => $form,
    ]);
}

    // ....
}

修复步骤 #

• 修正config/services.yaml的实体排除规则
  错误提示明确指出App\Entity\Company被排除在自动注入逻辑外。打开services.yaml，找到实体相关配置段，确保Company所在路径未被错误排除：

  App\Entity\:
      resource: '../src/Entity/'
      exclude: ['../src/Entity/{Repository,Traits}']
  

  若存在单独针对App\Entity\Company的排除项，直接将其移除。

• 确保路由参数与实体字段匹配
  当前路由使用{slug}作为匹配参数，需要实体类中存在getSlug()方法，且数据库中存在对应slug的Company记录。如果实体无slug字段或字段名不匹配，可修改路由参数为实体主键（如{id}），或显式指定参数映射：

  // 需先引入命名空间：use Symfony\Bridge\Doctrine\Attribute\MapEntity;
  
  #[Route('/company/edit/{slug}', name: 'company_edit', methods: ['GET', 'POST'])]
  public function edit(#[MapEntity(mapping: ['slug' => 'slug'])] Company $company, Request $request, EntityManagerInterface $em): Response
  

• 验证Doctrine实体配置
  确认App\Entity\Company已正确添加#[Entity]注解，对应的Repository类存在且配置无误，保证Doctrine能正常识别并查询该实体。

内容的提问来源于stack exchange，提问作者brice brice