我已将 Symfony 5.2 应用程序模板降级为使用 Symfony 4.4，以便允许使用一些需要旧版本 Symfony 的库。问题是当我这样做时composer install，我在安装快结束时收到此错误：
sh：symfony-cmd：找不到命令
似乎安装大多是成功的，因为我的vendor文件夹已创建并填充。但我担心这个错误。
这个错误是什么意思？我如何解决它？
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编辑：这是我的composer.json文件：
{
"type": "project",
"license": "proprietary",
"minimum-stability": "dev",
"prefer-stable": true,
"require": {
"php": ">=7.4.0",
"ext-ctype": "*",
"ext-iconv": "*",
"ext-json": "*",
"composer/package-versions-deprecated": "1.11.99.1",
"cweagans/composer-patches": "^1.7",
"doctrine/doctrine-bundle": "^2.4",
"doctrine/doctrine-migrations-bundle": "^3.1",
"doctrine/orm": "^2.9",
"phpdocumentor/reflection-docblock": "*",
"sensio/framework-extra-bundle": "*",
"symfony/framework-bundle": "4.4.*",
"symfony/http-client": "*",
"symfony/intl": "*",
"symfony/mailer": "*",
"symfony/mime": "*",
"symfony/monolog-bundle": "^3.1",
"symfony/notifier": "*",
"symfony/process": "*",
"symfony/property-access": "*",
"symfony/property-info": "*",
"symfony/proxy-manager-bridge": "*",
"symfony/security-bundle": "*",
"symfony/serializer": "*",
"symfony/string": "*",
"symfony/translation": "*",
"symfony/twig-bundle": "*",
"symfony/validator": "*",
"symfony/web-link": "*",
"symfony/yaml": "*",
"twig/extra-bundle": "*",
"twig/twig": "*"
},
"require-dev": {
"doctrine/doctrine-fixtures-bundle": "^3.4",
"roave/security-advisories": "dev-master",
"symfony/browser-kit": "*",
"symfony/css-selector": "*",
"symfony/debug-bundle": "*",
"symfony/maker-bundle": "*",
"symfony/phpunit-bridge": "*",
"symfony/stopwatch": "*",
"symfony/var-dumper": "*",
"symfony/web-profiler-bundle": "*",
"vimeo/psalm": "^4.9"
},
"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": "5.2.*"
},
"patches": {
"symfony/maker-bundle": {
"Provide flag to force annotation in make entity command": "https://raw.githubusercontent.com/vklux/maker-bundle-force-annotation/master/maker-force-annotation-flag.patch"
}
}
}
}