Composer: how can I install another dependency without updating old ones?

问题：

I have a project with a few dependencies and I'd like to install another one, but I'd like to keep the others the way they are. 我有一个带有一些依赖项目的项目，我想安装另一个项目，但我想保持其他人的方式。 So I've edited the composer.json , but if I run composer install , I get the following output: 所以我编辑了composer.json ，但如果我运行composer install ，我会得到以下输出：

Installing dependencies from lock file
Warning: The lock file is not up to date with the latest changes in composer.json. You may be getting outdated dependencies. Run update to update them.
Your requirements could not be resolved to an installable set of packages.

Problem 1
    - laravel/framework dev-master requires ext-mcrypt * -> the requested PHP extension mcrypt is missing from your system.
    - laravel/framework dev-master requires ext-mcrypt * -> the requested PHP extension mcrypt is missing from your system.
    - Installation request for laravel/framework dev-master -> satisfiable by laravel/framework dev-master.

First of all, I do have mcrypt installed, so I don't know why it's complaining about that there. 首先，我确实安装了mcrypt，所以我不知道它为什么会抱怨那里。

So, how can I install this new dependency? 那么，我该如何安装这个新的依赖？

My composer.json: 我的composer.json：

{
    "require": {

        "opauth/opauth": "*",
        "opauth/facebook": "*",
        "opauth/google": "*",
        "opauth/twitter": "*",

        "imagine/Imagine": "dev-develop",

        "laravel/framework": "4.*",
        "loic-sharma/profiler": "dev-master"
    },
    "autoload": {
        "classmap": [
            "app/libraries",
            "app/commands",
            "app/controllers",
            "app/models",
            "app/database/migrations",
            "app/tests/TestCase.php"
        ]
    },
    "minimum-stability": "dev"
}

---

解决方案：

参考一： https://en.stackoom.com/question/11pQz
参考二： https://stackoom.com/question/11pQz