Composer安装或更新错误，出了什么问题

Question

我有个问题。命令后

composer update

我收到错误消息

 [Symfony\Component\Console\Exception\LogicException]
  An option named "connection" already exists.


Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache handling the symfony-scripts event terminated with an exception


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





    [Symfony\Component\Console\Exception\LogicException]
    An option named "connection" already exists.

我究竟做错了什么？

Exception trace:
 () at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Component\Console\Input\InputDefinition.php:232
 Symfony\Component\Console\Input\InputDefinition->addOption() at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Component\Console\Command\Command.php:384
 Symfony\Component\Console\Command\Command->addOption() at C:\wamp64\www\ecommerce\vendor\doctrine\doctrine-bundle\Command\Proxy\RunSqlDoctrineCommand.php:24
 Doctrine\Bundle\DoctrineBundle\Command\Proxy\RunSqlDoctrineCommand->configure() at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Component\Console\Command\Command.php:61
 Symfony\Component\Console\Command\Command->__construct() at C:\wamp64\www\ecommerce\vendor\doctrine\dbal\lib\Doctrine\DBAL\Tools\Console\Command\RunSqlCommand.php:36
 Doctrine\DBAL\Tools\Console\Command\RunSqlCommand->__construct() at C:\wamp64\www\ecommerce\var\cache\dev\appDevDebugProjectContainer.php:11355
 appDevDebugProjectContainer->getDoctrine_QuerySqlCommandService() at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Component\DependencyInjection\Container.php:329
 Symfony\Component\DependencyInjection\Container->get() at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Bundle\FrameworkBundle\Console\Application.php:140
 Symfony\Bundle\FrameworkBundle\Console\Application->registerCommands() at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Bundle\FrameworkBundle\Console\Application.php:100
 Symfony\Bundle\FrameworkBundle\Console\Application->all() at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Bundle\FrameworkBundle\Console\Application.php:64
 Symfony\Bundle\FrameworkBundle\Console\Application->doRun() at C:\wamp64\www\ecommerce\vendor\symfony\symfony\src\Symfony\Component\Console\Application.php:122
 Symfony\Component\Console\Application->run() at C:\wamp64\www\ecommerce\bin\console:27

我用 git 获取所有项目，并在一台计算机上全部运行，在第二台计算机上不运行。

Answer 1

就我而言， symfony 的某个项目在以下情况v3.3下失败了，并且还说.composer installPHP 7.4PHP 7.2An option named "connection" already exists.

经过测试的解决方案：

• 降级到PHP 7.0，它与 SF 完美配合v3.3
• 将 symfony 升级到，它与和v3.4完美配合。PHP 7.27.4