Symfony 6.4 无法将抽象表单类型声明为服务

将继承AbstractType的抽象表单类HostingFormAbstract声明为服务时，在Symfony 6.4中出现报错，该配置从Symfony 3.4迁移而来，原版本可正常运行。

原配置文件内容 #

config/services.yaml #

imports:
- { resource: services/ }
services:
# default configuration for services in *this* file
    _defaults:
       autowire: true      # 自动注入服务依赖
       autoconfigure: true # 自动注册服务为命令、事件订阅者等

config/services/forms.yaml #

services:
  _defaults:
    autowire: true
    autoconfigure: true

  # 父表单服务
  App\Admin\Form\HostingFormAbstract:
    arguments:
      $authorizationChecker: '@security.authorization_checker'
      $tokenStorage: '@security.token_storage'
      $phpHandlers: '%php_handlers%'
      $nodeJsHandlers: '%nodeJs_handlers%'
    abstract:  true

  # 子表单服务
  App\Admin\Form\HostingFormCreate:
    parent: App\Admin\Form\HostingFormAbstract
    class: App\Admin\Form\HostingFormCreate
    calls:
      - [setGroupManager, ['@App\Services\Managers\GroupManager']]
    tags: [form.type]

  App\Admin\Form\HostingFormUpdate:
    parent: App\Admin\Form\HostingFormAbstract
    class: App\Admin\Form\HostingFormUpdate
    calls:
      - [setHostnameManager, ['@App\Services\Managers\HostnameManager']]
    tags: [form.type]
...

HostingFormAbstract类代码片段 #

namespace App\Admin\Form;

use Symfony\Component\Form\AbstractType;
// 省略use语句

abstract class HostingFormAbstract extends AbstractType
{
    private TokenStorageInterface $tokenStorage;
    private AuthorizationCheckerInterface $authorizationChecker;
    private array $phpHandlers;
    private array $nodeJsHandlers;

    public function __construct(TokenStorageInterface $tokenStorage, AuthorizationCheckerInterface $authorizationChecker, array $phpHandlers, array $nodeJsHandlers)
    {
        $this->tokenStorage = $tokenStorage;
        $this->authorizationChecker = $authorizationChecker;
        $this->phpHandlers = $phpHandlers;
        $this->nodeJsHandlers = $nodeJsHandlers;
    }
...

运行报错 #

The service "App\Admin\Form\HostingFormAbstract" tagged "form.type" must not be abstract.

注：尝试添加自定义标签无效，未找到官方解决方案。

已验证的解决方案 #

通过以下两步修改配置可解决问题：

• 将config/services/forms.yaml中的抽象表单服务配置移至config/services.yaml
• 为HostingFormAbstract服务添加autoconfigure: false

修改后的config/services.yaml关键配置如下：

App\Admin\Form\HostingFormAbstract:
    class: App\Admin\Form\HostingFormAbstract
    autoconfigure: false
    arguments:
        $authorizationChecker: '@security.authorization_checker'
        $tokenStorage: '@security.token_storage'
        $phpHandlers: '%php_handlers%'
        $nodeJsHandlers: '%nodeJs_handlers%'
    abstract: true

# 子表单服务配置保持不变

内容的提问来源于stack exchange，提问作者CTR