Question

我将我的网站从Symfony 3.4更新到Symfony 4并做了一些改动。但是知道我有这个错误：

您已请求不存在的服务＆＃34; D＆＃34;。

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

从Symfony 3.4升级到4.0时，我遇到了同样的问题。我目前正在使用路由注释，而使用Symfony 3则不是这样。

看来我的framework.yaml路由器配置（/ config / packages /）出错了。

framework: router: resource: "%kernel.root_dir%/config/routing.yml" strict_requirements: ~

实际上它是来自旧config.yml文件的复制/粘贴。当我使用路由注释时，删除框架配置中的路由器密钥解决了我的问题。但您可能还需要指向＆＃39;资源＆＃39;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！

Answer 2

提前道歉，因为我没有实际答案，但这不符合评论。

// From the stack trace
ObjectRouterLoader->load(D:\\blahblah) 

// ObjectRouterLoader::load()
public function load($resource, $type = null)
{
    $parts = explode(':', $resource);
    if (2 != count($parts)) {
        throw new \InvalidArgumentException(sprintf('Invalid resource "%s" passed to the "service" route loader: use the format "service_name:methodName"', $resource));
    }

    $serviceString = $parts[0];
    $method = $parts[1];

    $loaderObject = $this->getServiceObject($serviceString);

路由对象加载器实际上需要一个像service：method这样的字符串。你的Windows D驱动器路径也有一个冒号，所以它通过初始检查，但后来想加载一个名为D的服务。

那么为什么使用无效参数调用ObjectRouteLoader :: load？我无法从堆栈跟踪中回答，但我猜你的应用程序的Kernel :: configureRoutes或者你的routes.yaml文件中有一个问题。

我所能提出的建议是，您尝试撤消与路线相关的任何操作。如果这没有帮助，那么可以从一个新的S4骨架项目开始，一次移动你的S3应用程序。

Symfony 4：您已请求不存在的服务

2 个答案: