交响乐 3.1 | TWIG - Markup.php（自 2.9.X 迁移以来抛出错误）

Question

将我的项目从 Symfony 2.9.X 升级到 Symfony 3.1.X 后，网站一直在不断抛出错误：

我目前对这个特定问题感到困惑，无法解决。

composer.json:

{
    "name": "jordan/.checkout",
    "license": "proprietary",
    "type": "project",
    "autoload": {
        "psr-4": {
            "": "src/"
        },
        "classmap": [
            "app/AppKernel.php",
            "app/AppCache.php"
        ]
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\": "tests/"
        }
    },
    "require": {
        "php": ">=5.5.9",
        "symfony/symfony": "3.1.*",
        "doctrine/orm": "^2.5",
        "doctrine/doctrine-bundle": "^1.6",
        "doctrine/doctrine-cache-bundle": "^1.2",
        "symfony/swiftmailer-bundle": "^2.3",
        "symfony/monolog-bundle": "^2.8",
        "sensio/distribution-bundle": "^5.0",
        "sensio/framework-extra-bundle": "^3.0.2",
        "incenteev/composer-parameter-handler": "^2.0",
        "symfony/assetic-bundle": "^2.8.0"
    },
    "require-dev": {
        "sensio/generator-bundle": "^3.0",
        "symfony/phpunit-bridge": "^3.0"
    },
    "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",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::prepareDeploymentTarget"
        ],
        "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",
            "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::prepareDeploymentTarget"
        ]
    },
    "extra": {
        "symfony-app-dir": "app",
        "symfony-bin-dir": "bin",
        "symfony-var-dir": "var",
        "symfony-web-dir": "httpdocs",
        "symfony-tests-dir": "tests",
        "symfony-assets-install": "relative",
        "incenteev-parameters": {
            "file": "app/config/parameters.yml"
        }
    }
}

Answer 1

JsonSerializable 是 PHP 接口。

添加反斜杠以使用它：\JsonSerializable 而不是 JsonSerializable 或在文件顶部添加 use 语句 (use JsonSerializable;)。

否则，它将在您的包中查找（例如 AppBundle\AppBundle\Twig\JsonSerializable，我不知道 Markup.php 位于何处）

交响乐 3.1 | TWIG - Markup.php（自 2.9.X 迁移以来抛出错误）

SYMFONY 3.1 | TWIG - Markup.php (throwing error since migrating from 2.9.X)

migration

exception

symfony

twig

symfony-3.1