即使依赖项版本号在范围内，composer也拒绝安装程序包

Question

我的包依赖于照明/支持~4.1。

我正在尝试在一个Laravel项目中安装此软件包，该项目的composer.json文件要求“Laravel/framework”：“4.1.*”。

但当我运行composer require并尝试安装此软件包时，每次都会遇到以下错误：

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

  Problem 1
    - Conclusion: remove laravel/framework v4.1.29
    - adityamenon/postcodes-io-laravel 1.0.0 requires illuminate/support 4.2.* -> satisfiable by illuminate/support[v4.2.1, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9].
    - adityamenon/postcodes-io-laravel 1.0.1 requires illuminate/support 4.2.* -> satisfiable by illuminate/support[v4.2.1, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9].
    - don't install illuminate/support v4.2.1|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.2|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.3|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.4|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.5|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.6|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.7|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.8|don't install laravel/framework v4.1.29
    - don't install illuminate/support v4.2.9|don't install laravel/framework v4.1.29
    - Installation request for laravel/framework == 4.1.29.0 -> satisfiable by laravel/framework[v4.1.29].
    - Installation request for adityamenon/postcodes-io-laravel ~1.0 -> satisfiable by adityamenon/postcodes-io-laravel[1.0.0, 1.0.1].


Installation failed, reverting ./composer.json to its original content.

我做错了什么？

Answer 1

看来你是那个包裹的作者。

我的软件包依赖于照明/支持~4.1。

这对于所有发布的版本1.0.0和1.0.1都是错误的——这些版本依赖于照明/支持4.2。*.

只有master分支依赖于~4.1-如果您想发布它，只需将当前master分支标记为版本1.0.2或1.1.0（取决于是否只修复了错误或更改了接口-甚至可能是不兼容的版本2.0.0）。

然后，您可以更新您的其他软件，将您的软件包与Laravel 4.1一起使用。

Answer 2

您安装的adityameon/postcodes io laravel~1.0，正如我们在错误消息的最后一项中看到的：

adityamenon/邮政编码io laravel~1.0的安装请求-

这意味着1.0.0或1.0.1（也显示在本项中）。查看PackageGist，1.0.0和1.0.1都需要照明/支持4.2.*（显示在错误消息的第二项和第三项中）。您可以安装laravel/framework4.1.*。由于4.1.*不在4.2.*的范围内（程序包所需的版本），因此它将失败。

您可能想要安装dev版本，您可以使用@dev标记它：

{
    ...
    "require": {
        "adityamenon/postcodes-io-laravel": "dev-master"
    }
}

顺便说一句，真正依靠devmaster不是一个好主意。您应该始终尝试将主分支别名为特定的dev版本。