php - 交响乐 4 : You have requested a non-existent service

Question

我将我的网站从 Symfony 3.4 更新到 Symfony 4 并做了一点改动。但是知道我有这个错误:

您请求了一个不存在的服务“D”。

这是我的堆栈跟踪:

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException:
You have requested a non-existent service "D".

  at vendor\symfony\dependency-injection\Container.php:263
  at Symfony\Component\DependencyInjection\Container->get('D')
     (vendor\symfony\routing\Loader\DependencyInjection\ServiceRouterLoader.php:38)
  at Symfony\Component\Routing\Loader\DependencyInjection\ServiceRouterLoader->getServiceObject('D')
     (vendor\symfony\routing\Loader\ObjectRouteLoader.php:55)
  at Symfony\Component\Routing\Loader\ObjectRouteLoader->load('D:\\IIS Websites\\Wizard\\src/config/routing.yml', 'service')
     (vendor\symfony\config\Loader\DelegatingLoader.php:40)
  at Symfony\Component\Config\Loader\DelegatingLoader->load('D:\\IIS Websites\\Wizard\\src/config/routing.yml', 'service')
     (vendor\symfony\framework-bundle\Routing\DelegatingLoader.php:70)
  at Symfony\Bundle\FrameworkBundle\Routing\DelegatingLoader->load('D:\\IIS Websites\\Wizard\\src/config/routing.yml', 'service')
     (vendor\symfony\framework-bundle\Routing\Router.php:56)
  at Symfony\Bundle\FrameworkBundle\Routing\Router->getRouteCollection()
     (vendor\symfony\routing\Router.php:367)
  at Symfony\Component\Routing\Router->getMatcherDumperInstance()
     (vendor\symfony\routing\Router.php:289)
  at Symfony\Component\Routing\Router->Symfony\Component\Routing\{closure}(object(ResourceCheckerConfigCache))
  at call_user_func(object(Closure), object(ResourceCheckerConfigCache))
     (vendor\symfony\config\ResourceCheckerConfigCacheFactory.php:43)
  at Symfony\Component\Config\ResourceCheckerConfigCacheFactory->cache('D:\\IIS Websites\\Wizard\\var\\cache\\dev/srcDevDebugProjectContainerUrlMatcher.php', object(Closure))
     (vendor\symfony\routing\Router.php:302)
  at Symfony\Component\Routing\Router->getMatcher()
     (vendor\symfony\routing\Router.php:256)
  at Symfony\Component\Routing\Router->matchRequest(object(Request))
     (vendor\symfony\http-kernel\EventListener\RouterListener.php:109)
  at Symfony\Component\HttpKernel\EventListener\RouterListener->onKernelRequest(object(GetResponseEvent), 'kernel.request', object(EventDispatcher))
     (vendor\symfony\event-dispatcher\EventDispatcher.php:212)
  at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(array(array(object(DebugHandlersListener), 'configure'), array(object(ValidateRequestListener), 'onKernelRequest'), array(object(SessionListener), 'onKernelRequest'), array(object(FragmentListener), 'onKernelRequest'), array(object(RouterListener), 'onKernelRequest'), array(object(ResolveControllerNameSubscriber), 'onKernelRequest'), array(object(LocaleListener), 'onKernelRequest'), array(object(TranslatorListener), 'onKernelRequest'), array(object(TraceableFirewallListener), 'onKernelRequest')), 'kernel.request', object(GetResponseEvent))
     (vendor\symfony\event-dispatcher\EventDispatcher.php:44)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch('kernel.request', object(GetResponseEvent))
     (vendor\symfony\http-kernel\HttpKernel.php:125)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (vendor\symfony\http-kernel\HttpKernel.php:66)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor\symfony\http-kernel\Kernel.php:190)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (public\index.php:34)

提前感谢您的帮助。

Answer 1

我在从 Symfony 3.4 升级到 4.0 时遇到了同样的问题。我目前正在为路由使用注释，而在使用 Symfony 3 时情况并非如此。

看来我的 framework.yaml 路由器配置 (/config/packages/) 是错误的。

框架:
路由器:
资源:“%kernel.root_dir%/config/routing.yml”
严格要求:~

它实际上是从旧的 config.yml 文件复制/粘贴的。由于我正在为路由使用注释，因此在框架配置中删除路由器 key 解决了我的问题。但您可能还需要指向“资源”下的特定路由配置文件。

您可以使用以下命令检查指定的资源路径是否正确:

php bin/console debug:config framework

希望这会有所帮助!