symfony – 该软件包在稳定版本中不可用

> app需要在dev版本中使用andig / dbcopy：
composer需要和/ dbcopy：dev-master
> andig / dbcopy需要symfony / consolein dev版本(由于2.5中的错误)：

"require": {
    "doctrine/dbal": "2.4.*","symfony/console": "2.6.*@dev"
},

现在,当使用composer require向应用程序添加andig / dbcopy时,composer会抱怨稳定性：

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

  Problem 1
    - Installation request for andig/dbcopy dev-master -> satisfiable by andig/dbcopy[dev-master].
    - andig/dbcopy dev-master requires symfony/console 2.6.*@dev -> no matching package 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.

没有定义最小稳定性设置,应用程序已经依赖于dev-master包.

我已经阅读了https://groups.google.com/forum/#!topic/composer-dev/_g3ASeIFlrc/discussion,但我仍然感到困惑的是,尽管作曲家无法安装

>明确定义所有稳定性设置
>应用程序本身已经对“dev-master”有另一种依赖吗？