RAILS：Bundler 在安装 ActiveAdmin 时找不到 gem“actionpack”的兼容版本答案

【问题标题】：RAILS : Bundler could not find compatible versions for gem "actionpack" on installing ActiveAdminRAILS：Bundler 在安装 ActiveAdmin 时找不到 gem“actionpack”的兼容版本
【发布时间】：2017-04-07 08:27:53
【问题描述】：

我在我的 gemfile 中添加了 gem 'activeadmin', github: 'activeadmin' 并进行了捆绑安装。然后它向我抛出以下错误。

Bundler could not find compatible versions for gem "actionpack":
   In snapshot (Gemfile.lock):
     actionpack (= 5.0.0.1)

In Gemfile:
activeadmin (~> 1.0.0.pre4) was resolved to 1.0.0.pre4, which depends on
  formtastic (~> 3.1) was resolved to 3.1.4, which depends on
    actionpack (>= 3.2.13)

activeadmin (~> 1.0.0.pre4) was resolved to 1.0.0.pre4, which depends on
  inherited_resources (~> 1.6) was resolved to 1.6.0, which depends on
    actionpack (< 5, >= 3.2)

activeadmin (~> 1.0.0.pre4) was resolved to 1.0.0.pre4, which depends on
  inherited_resources (~> 1.6) was resolved to 1.6.0, which depends on
    actionpack (< 5, >= 3.2)

activeadmin (~> 1.0.0.pre4) was resolved to 1.0.0.pre4, which depends on
  kaminari (~> 0.15) was resolved to 0.17.0, which depends on
    actionpack (>= 3.0.0)

activeadmin (~> 1.0.0.pre4) was resolved to 1.0.0.pre4, which depends on
  ransack (~> 1.3) was resolved to 1.8.2, which depends on
    actionpack (>= 3.0)

运行 bundle update 将从头开始重建您的快照，仅使用您的 Gemfile 中的 gem，这可能会解决冲突。

我进行了捆绑更新，但错误仍然相同。任何帮助将不胜感激。

编辑

gem 'activeadmin' 与 rails 5 不兼容

【问题讨论】：

标签： ruby-on-rails ruby activeadmin ruby-on-rails-5

【解决方案1】：

这个解决方案对我有用。对于rails 5，您必须添加另一个gem，如下所示：

gem 'activeadmin', github: 'activeadmin'
gem 'inherited_resources', github: 'activeadmin/inherited_resources'

要进一步阅读，请转到this 线程。

【讨论】：

做到了。但它与 rails 5 不兼容。这就是为什么 gem 'activeadmin', github: 'activeadmin'

【解决方案2】：

你必须在 Rails 5 中安装继承的资源 gem 并且有活动的管理员

gem 'activeadmin', github: 'activeadmin'
gem 'inherited_resources', github: 'activeadmin/inherited_resources'

【讨论】：