安装sonata管理包时出错

Question

我试图为我的项目使用sonata admin bundle但是在安装时遇到了这个错误：

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

  Problem 1
    - sonata-project/admin-bundle 2.3.7 requires sensio/generator-bundle ~2.3 -> no matching package found.

 - Installation request for sonata-project/admin-bundle ^2.3 -> satisfiable by sonata-project/admin-bundle[2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7].

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.

Read <https://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.

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请帮我解决这个问题？

Answer 1

我最近将Symfony应用程序更新为2.8，并且使SonataAdminBundle可安装的唯一方法是在^2.3@dev中使用composer.json约束。