{
    "name": "foo/lib-bar","description": "Bar library","version": "1.0.0-dev","type": "library","require": {
        "PHP": ">=5.4","ext-posix": "*"
    }
}

应用程序使用此库,因此它包含必要的要求：

{
    "name": "foo/app-bar","description": "Bar application","version": "0.5.0-dev","type": "application","repositories": [
        {
            "type": "vcs","url": "ssh://user@git.example.com/lib-foo"
        }
    ],"require-dev": {
        "foo/lib-bar": ">=1.0.0-dev",},"require": {
        "PHP": ">=5.5.3"
    }
}

到目前为止一切顺利：作曲家安装和作曲家更新按预期运行,安装依赖项,我可以在供应商/中看到它

现在,the docs说

require#

Lists packages required by this package. The package will not be installed unless those requirements can be met.

对于导致问题的步骤：

好吧,我的库已准备好部署并退出开发阶段.在我的应用程序的生产版本中也恰好需要它.我从我的库的composer.json文件中删除了dev后缀,提交并推送文件,并准备好更新应用程序.

使用应用程序的composer.json,我将库依赖项从require-dev部分移动到require并删除dev后缀(所有内容都是复制粘贴的,所以没有拼写错误 – 我已经检查并再次重新检查)：

"require-dev": {},"require": {
        "PHP": ">=5.5.3","foo/lib-bar": ">=1.0.0"
    }

现在我运行作曲家更新,我得到：

$composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)                     
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for foo/lib-bar >=1.0.0 -> satisfiable by foo/lib-bar[dev-master].
    - Removal request for foo/lib-bar == 9999999-dev

我以为它没找到新版本,所以我手动删除了旧库：

$rm composer.lock
$rm -rf vendor/foo/

并尝试从头开始安装

$composer install

但这次它给了我：

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested package foo/lib-bar could not be found in any version,there may be a typo in the package name.

所以似乎require-dev确实有效,但要求却没有.对这里可能出错的任何建议？