将 symfony/swiftmailer-bundle 更新到 2.2.5 后出错

Question

使用 composer.phar 更新将 symfony/swiftmailer-bundle 更新到 v2.2.5 后，我收到这样的错误：

Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Removing symfony/swiftmailer-bundle (v2.2.4)
  - Installing symfony/swiftmailer-bundle (v2.2.5)
    Loading from cache

Writing lock file
Generating autoload files



  [Symfony\Component\DependencyInjection\Exception\InvalidArgumentException]  
  The service definition "swiftmailer.mailer" does not exist.                 



Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache handling the post-update-cmd event terminated with an exception



  [RuntimeException]                                                         
  An error occurred when executing the "'cache:clear --no-warmup'" command. 

降级到 2.2.4 后问题已修复

Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Removing symfony/swiftmailer-bundle (v2.2.5)
  - Installing symfony/swiftmailer-bundle (v2.2.4)
    Loading from cache

Writing lock file
Generating autoload files
Clearing the cache for the dev environment with debug true
Installing assets using the hard copy option
Installing assets (part of code removed)

Answer 1

您绝对应该使用mailer 服务，因为它是正确 swiftmailer 服务的别名，无论它如何命名。例如 im v2.3.3 它是swiftmailer.mailer.default

但你必须使用

$container->findDefinition('mailer');

与getDefinition() 不同，它还解析别名，因此如果$serviceId 参数是别名，您将获得底层定义。

Answer 2

触发错误的行是：

$definition = $container->getDefinition('swiftmailer.mailer') ;

错误是由更改服务名称引起的。直到 2.2.4 这个名字是

swiftmailer.mailer

从 2.2.5 开始是：

swiftmailer.mailer.abstract

我把这行改成：

$definition = $container->hasDefinition('swiftmailer.mailer') ? $container->getDefinition('swiftmailer.mailer') : $container->getDefinition('swiftmailer.mailer.abstract');

这修正了错误。