Symfony 错误学说

ContextErrorException：

可捕获的致命错误：传递给Sonata\EasyExtendsBundle\Mapper\DoctrineORMMapper:：loadClassMetadata的参数1必须是Doctrine\Common\Persistence\Event\LoadClassMetadataEventArgs的实例，给定的Doctrine\ORM\Event\LoadClassMetadataEventArgs的实例

{
    "name": "symfony/framework-standard-edition",
    "license": "MIT",
    "type": "project",
    "description": "The \"Symfony Standard Edition\" distribution",
    "autoload": {
        "psr-0": { "": "src/" }
    },
    "require": {
        "php": ">=5.3.3",
        "symfony/symfony": "2.3.*",
        "doctrine/orm": "2.3.*",
        "doctrine/doctrine-bundle": "1.2.*",
        "twig/extensions": "1.0.*",
        "symfony/assetic-bundle": "2.3.*",
        "symfony/swiftmailer-bundle": "2.3.*",
        "symfony/monolog-bundle": "2.3.*",
        "sensio/distribution-bundle": "2.3.*",
        "sensio/framework-extra-bundle": "2.3.*",
        "sensio/generator-bundle": "2.3.*",
        "incenteev/composer-parameter-handler": "~2.0",
        "sonata-project/admin-bundle": "2.3.*",
        "friendsofsymfony/user-bundle": "1.3.2",
        "sonata-project/user-bundle": "dev-master",
        "sonata-project/datagrid-bundle": "~2.2@dev",
        "sonata-project/doctrine-orm-admin-bundle": "2.3.*"
    },
    "scripts": {
        "post-install-cmd": [
            "Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
        ],
        "post-update-cmd": [
            "Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
        ]
    },
    "config": {
        "bin-dir": "bin"
    },
    "minimum-stability": "stable",
    "extra": {
        "symfony-app-dir": "app",
        "symfony-web-dir": "web",
        "incenteev-parameters": {
            "file": "app/config/parameters.yml"
        },
        "branch-alias": {
            "dev-master": "2.3-dev"
        }
    }
}

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检查获得异常的类中的use语句，尝试替换use-doctor\ORM\Event\LoadClassMetadataEventArgs；使用原则\Common\Persistence\Event\LoadClassMetadataEventArgs；，或者尝试使用调试器四处搜索。

编辑： 这在2.1.9版本中已修复

EasyExtends捆绑包中有一个提交似乎导致了这种情况

我的建议是暂时在composer.json文件中添加一个显式版本。我遇到此错误的版本是2.1.8，因此我使用了提交之前的版本：

"sonata-project/easy-extends-bundle": "2.1.7"

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一定要问问题！必须使可读！必须明确目标/问题！他们将其添加回2.1.10