Bundler找不到gem“actionpack”的兼容版本：

Question

请原谅我在学习RoR时缺乏知识。

当我运行bundle update时，我得到了这个错误。

Bundler could not find compatible versions for gem "actionpack":
  In Gemfile:
    rails (= 4.2.2) x64-mingw32 was resolved to 4.2.2, which depends on
      railties (= 4.2.2) x64-mingw32 was resolved to 4.2.2, which depends on
        actionpack (= 4.2.2) x64-mingw32

    rails (= 4.2.2) x64-mingw32 was resolved to 4.2.2, which depends on
      railties (= 4.2.2) x64-mingw32 was resolved to 4.2.2, which depends on
        actionpack (= 4.2.2) x64-mingw32

    rails (= 4.2.2) x64-mingw32 was resolved to 4.2.2, which depends on
      railties (= 4.2.2) x64-mingw32 was resolved to 4.2.2, which depends on
        actionpack (= 4.2.2) x64-mingw32

    refinerycms (~> 3.0) x64-mingw32 was resolved to 3.0.0, which depends on
refinerycms-core (= 3.0.0) x64-mingw32 was resolved to 3.0.0, which
depends on
        actionpack (< 5.0, >= 4.2.3) x64-mingw32

C:\Ruby200-x64\my_new_application>ruby --v
ruby: invalid option --v  (-h will show valid options) (RuntimeError)

这是我的ruby版本

ruby 2.0.0p648 (2015-12-16) [x64-mingw32]

实际上，在我决定按照该页面上发布的指导原则安装refinerycms from here.之前，rails一直工作得很好。

我搜索了这个错误，人们建议使用bundle update或bundle install，但这两种方法都不起作用。

Answer 1

问题是你使用的是Rails 4.2.2，它使用ActionPack 4.2.2，而Refinery CMS至少需要4.2.3。如果您更新了Rails (可能需要调整您的Gemfile以使用较新的版本，如~> 4.2.3)，那么一切都应该很好。

Answer 2

我认为您使用的refinerycms版本取决于Rails 4.2.3，而您使用的是4.2.2。您可以尝试将Rails升级到4.2.3或将Refinerycms降级到支持4.2.2的版本吗？