我正在使用 Symfony 5.3 和 PHP 8.0.12 开发一个项目。我一直在自己的电脑上开发它，它运行良好。我现在想将它部署在远程容器上。

但是，当我启动内置 Webserver 的 Symfony 时，访问任何已定义的路由时都会出现以下错误：

issue with server callback error="unable to fetch the response from the backend: malformed MIME header: missing colon: "FROM information_schema.schemata""

在这两种情况下（在我的计算机和容器中），服务器都连接到远程 PostgreSQL 数据库。容器连接到数据库似乎没有任何问题，因为我可以使用 psql 命令手动连接。

我尝试重新安装 Symfony（Symfony CLI 版本 v4.26.8）、Composer（版本 2.1.12）和大多数 PHP 库，但这并没有改变任何东西。

我不知道问题出在哪里。任何帮助将不胜感激。

这是我的composer.json：

{
"type": "project",
"license": "proprietary",
"minimum-stability": "stable",
"prefer-stable": true,
"require": {
    "php": ">=7.2.5",
    "ext-ctype": "*",
    "ext-iconv": "*",
    "ext-json": "*",
    "composer/package-versions-deprecated": "1.11.99.2",
    "doctrine/annotations": "^1.13",
    "doctrine/doctrine-bundle": "^2.4",
    "doctrine/doctrine-migrations-bundle": "^3.1",
    "doctrine/orm": "^2.9",
    "lexik/jwt-authentication-bundle": "^2.13",
    "sensio/framework-extra-bundle": "^6.2",
    "symfony/apache-pack": "^1.0",
    "symfony/dotenv": "5.3.*",
    "symfony/flex": "^1.15",
    "symfony/framework-bundle": "5.3.*",
    "symfony/http-foundation": "5.3.*",
    "symfony/ldap": "5.3.*",
    "symfony/proxy-manager-bridge": "5.3.*",
    "symfony/security-bundle": "5.3.*",
    "symfony/stopwatch": "5.3.*",
    "symfony/web-profiler-bundle": "5.3.*",
    "symfony/property-access": "5.3.*",
    "symfony/runtime": "5.3.*",
    "symfony/security-csrf": "5.3.*",
    "symfony/serializer": "5.3.*",
    "symfony/yaml": "5.3.*"
},
"config": {
    "optimize-autoloader": true,
    "preferred-install": {
        "*": "dist"
    },
    "sort-packages": true
},
"autoload": {
    "psr-4": {
        "App\\": "src/"
    }
},
"autoload-dev": {
    "psr-4": {
        "App\\Tests\\": "tests/"
    }
},
"replace": {
    "symfony/polyfill-ctype": "*",
    "symfony/polyfill-iconv": "*",
    "symfony/polyfill-php72": "*"
},
"scripts": {
    "auto-scripts": {
        "cache:clear": "symfony-cmd",
        "assets:install %PUBLIC_DIR%": "symfony-cmd"
    },
    "post-install-cmd": [
        "@auto-scripts"
    ],
    "post-update-cmd": [
        "@auto-scripts"
    ]
},
"conflict": {
    "symfony/symfony": "*"
},
"extra": {
    "symfony": {
        "allow-contrib": false,
        "require": "5.3.*"
    }
},
"require-dev": {
    "symfony/maker-bundle": "^1.33"
}
}