无法将rails 5.1.2更新到5.2.3

Question

我是rails的新手，我正在尝试更新项目中的rails。

我更改了gem 'rails', '~> 5.2.3'

用于我的Gemfile中的gem 'rails', '~> 5.2.3'。

执行bundle update rails和got

Bundler could not find compatible versions for gem "activerecord":
   In Gemfile:
    administrate (~> 0.8.1) was resolved to 0.8.1, which depends on
       activerecord (>= 4.2, < 5.2)

     administrate (~> 0.8.1) was resolved to 0.8.1, which depends on
       kaminari (>= 1.0) was resolved to 1.1.1, which depends on
         kaminari-activerecord (= 1.1.1) was resolved to 1.1.1, which depends on
           activerecord

     rails (~> 5.2.3) was resolved to 5.2.3, which depends on
       activerecord (= 5.2.3)

我尝试删除Gemfile.lock并执行bundle install，得到以下结果：

Bundler could not find compatible versions for gem "actionpack":
  In Gemfile:
    active_model_serializers (~> 0.10.6) was resolved to 0.10.9, which depends on
      actionpack (>= 4.1, < 6)

    administrate (~> 0.8.1) was resolved to 0.8.1, which depends on
      actionpack (>= 4.2, < 5.2)

    rails (~> 5.2.3) was resolved to 5.2.3, which depends on
      actionpack (= 5.2.3)

    rspec-rails (~> 3.5) was resolved to 3.8.2, which depends on
      actionpack (>= 3.0)

Bundler could not find compatible versions for gem "administrate":
   In Gemfile:
     administrate (~> 0.8.1)

     administrate-field-carrierwave (~> 0.2.0) was resolved to 0.2.0, which depends on
       administrate (< 1.0.0)

     administrate-field-ckeditor (~> 0.0.9) was resolved to 0.0.9, which depends on
       administrate (>= 0.3, < 1.0)

并且未创建任何Gemfile.lock

Answer 1

运行bundle update

然后运行bundle install，它会处理gem文件的更改，bundle update会升级已经由Bundler管理的gem。