Php Composer-安装github分叉/分支

为什么composer无法从安装分支

My composer.json：

"repositories": [
    {
        "type":"package",
        "package": {
          "name": "doctrine/doctrine-migrations-bundle",
          "version":"master",
          "source": {
              "url": "https://github.com/wimvds/DoctrineMigrationsBundle.git",
              "type": "git",
              "reference":"master"
            }
        }
    }
],
"require": {
(...)
        "doctrine/migrations": "1.0.*@dev",
        "doctrine/doctrine-migrations-bundle": "dev-feature/multiple-em-support",
(...)
}.

错误：

composer update

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

  Problem 1
    - The requested package doctrine/doctrine-migrations-bundle dev-feature/multiple-em-support could not be found.

Potential causes:
 - A typo in the package name
 - The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details.

试试这个

"repositories": [
{

      "source": {
          "url": "https://github.com/wimvds/DoctrineMigrationsBundle",
          "type": "git",
        }
    }
}
],
"require": {
(...)
    "doctrine/migrations": "1.0.*@dev",
    "doctrine/doctrine-migrations-bundle": "dev-feature/multiple-em-support",
(...)
}

---

可能的重复只是说“必须定义一个类型”。我认为“类型”不能在“源”中？只是给那些仍然有问题的人的一个提示。注意分支名称前面的

dev-

。这不是分支名称的一部分，而是作曲家如何知道它是分支而不是标记版本。这是一个重要的注意事项！谢谢

"repositories": [
{

      "source": {
          "url": "https://github.com/wimvds/DoctrineMigrationsBundle",
          "type": "git",
        }
    }
}
],
"require": {
(...)
    "doctrine/migrations": "1.0.*@dev",
    "doctrine/doctrine-migrations-bundle": "dev-feature/multiple-em-support",
(...)
}