php - 无法安装 symfony/maker-bundle

Question

我是 Symfony 的新手，我尝试安装 symfony/maker-bundle ，但它给了我以下错误:

Using version ^1.22 for symfony/maker-bundle
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Restricting packages listed in "symfony/symfony" to "4.4.*"
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - ocramius/proxy-manager 2.9.0 requires composer-runtime-api ^2.0.0 -> no matching package found.
    - ocramius/proxy-manager 2.9.0 requires composer-runtime-api ^2.0.0 -> no matching package found.
    - ocramius/proxy-manager 2.9.0 requires composer-runtime-api ^2.0.0 -> no matching package found.
    - Installation request for ocramius/proxy-manager (locked at 2.9.0) -> satisfiable by 
ocramius/proxy-manager[2.9.0].

我搜索了类似的问题，他们经常在 composer.json 中更改软件包版本作为解决方案，但我找不到 ocramius/proxy-manager也不是 composer-runtime-api在里面:

{
"type": "project",
"license": "proprietary",
"require": {
    "php": "^7.1.3",
    "ext-ctype": "*",
    "ext-iconv": "*",
    "ext-simplexml": "*",
    "bluetel-solutions/twig-truncate-extension": "^0.1.3",
    "friendsofsymfony/rest-bundle": "^2.7",
    "jms/serializer-bundle": "^3.5",
    "liip/imagine-bundle": "^2.2",
    "sensio/framework-extra-bundle": "^5.4",
    "symfony/apache-pack": "^1.0",
    "symfony/asset": "4.4.*",
    "symfony/console": "4.4.*",
    "symfony/dotenv": "4.4.*",
    "symfony/flex": "^1.3",
    "symfony/form": "4.4.*",
    "symfony/framework-bundle": "4.4.*",
    "symfony/mailer": "4.4.*",
    "symfony/monolog-bundle": "^3.4",
    "symfony/orm-pack": "^1.0",
    "symfony/security-bundle": "4.4.*",
    "symfony/security-csrf": "4.4.*",
    "symfony/serializer": "4.4.*",
    "symfony/swiftmailer-bundle": "^3.4",
    "symfony/translation": "4.4.*",
    "symfony/twig-bundle": "4.4.*",
    "symfony/validator": "4.4.*",
    "symfony/webpack-encore-bundle": "^1.7",
    "symfony/yaml": "4.4.*",
    "twig/extensions": "^1.5",
    "vich/uploader-bundle": "^1.12",
    "whatwedo/core-bundle": "dev-symfony5",
    "whatwedo/search-bundle": "dev-symfony5"
},
"require-dev": {
    "symfony/maker-bundle": "^1.12",
    "symfony/web-server-bundle": "4.4.*"
},
"config": {
    "preferred-install": {
        "*": "dist"
    },
    "sort-packages": true
},
"autoload": {
    "psr-4": {
        "App\\": "src/"
    }
},
"autoload-dev": {
    "psr-4": {
        "App\\Tests\\": "tests/"
    }
},
"replace": {
    "paragonie/random_compat": "2.*",
    "symfony/polyfill-ctype": "*",
    "symfony/polyfill-iconv": "*",
    "symfony/polyfill-php71": "*",
    "symfony/polyfill-php70": "*",
    "symfony/polyfill-php56": "*"
},
"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": "4.4.*"
    }
}

可能是我需要其他版本的 symfony/maker-bundle ?

Answer 1

Ocramius 以其在保持向后兼容性方面的严厉立场而闻名。
在这种情况下，release 2.9.0说:

This release upgrades ocramius/proxy-manager to use composer-runtime-api:^2: thismeans that you will need composer:^2 to install this version of ProxyManager.

In order to upgrade to composer v2, you can run composer self-update --2 on yourdevelopment or CI/CD system.

所以你的选择是:

要么将 composer 升级到版本 2 ( composer self-update --2 )，这确实是推荐的方法，除非您有一些您真正需要的特定 composer 插件并且尚未更新以适应新版本。

查找您正在安装的软件包是需要代理管理器 ( composer why ocramius/proxy-manager ) 的软件包，然后查看您是否可以调整对该软件包的版本限制，使其依赖于较旧的 (< 2.9) 版本 ocramius/proxy-manager . (我提到这个选项只是为了完整起见，但升级 Composer 确实是要走的路)。