尝试加载 gem 'sass-rails' 时出错。 (Bundler::GemRequireError)

Question

我在启动 Rails 服务器时遇到错误。

C:\Ruby22-x64\WebAppRails>rails s C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'sass-rails'. (Bundler::GemRequireError)
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
        from C:/Ruby22-x64/WebAppRails/config/application.rb:7:in `<top (required)>'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:78:in `block in server'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

这是我正在使用的宝石：

C:\Ruby22-x64\WebAppRails>bundle show

捆绑包中包含的宝石：

• actionmailer (4.2.6)
• 动作包 (4.2.6)
• 动作视图 (4.2.6)
• activejob (4.2.6)
• 活动模型 (4.2.6)
• 活动记录 (4.2.6)
• 主动支持 (4.2.6)
• 是 (6.0.3)
• binding_of_caller (0.7.2)
• 构建器 (3.2.2)
• 捆绑器 (1.11.2)
• 再见 (8.2.5)
• 咖啡轨 (4.1.1)
• 咖啡脚本 (2.4.1)
• 咖啡脚本源 (1.10.0)
• 并发红宝石 (1.0.1)
• debug_inspector (0.0.2)
• erubis (2.7.0)
• execjs (2.6.0)
• globalid (0.3.6)
• i18n (0.7.0)
• jbuilder (2.4.1)
• jquery-rails (4.1.1)
• json (1.8.3)
• 丝瓜络 (2.0.3)
• 邮件 (2.6.4)
• mime 类型 (3.0)
• mime 类型数据 (3.2016.0221)
• mini_portile2 (2.0.0)
• minitest (5.8.4)
• multi_json (1.11.3)
• nokogiri (1.6.7.2)
• 机架 (1.6.4)
• 机架测试 (0.6.3)
• 导轨 (4.2.6)
• rails-deprecated_sanitizer (1.0.3)
• rails-dom-testing (1.0.7)
• rails-html-sanitizer (1.0.3)
• 铁路 (4.2.6)
• 耙子 (11.1.2)
• rdoc (4.2.2)
• 萨斯 (3.4.22)
• sass-rails (5.0.4)
• sdoc (0.4.1)
• 链轮 (3.6.0)
• 链轮导轨 (3.0.4)
• sqlite3 (1.3.11)
• 雷神 (0.19.1)
• thread_safe (0.3.5)
• 倾斜 (2.0.2)
• turbolinks (2.5.3)
• tzinfo (1.2.2)
• tzinfo-data (1.2016.4)
• 丑化剂 (3.0.0)
• 网络控制台 (2.3.0)

gem 版本是 2.4.5.1，ruby 版本是 2.2.4

我需要做什么来解决这个问题？

Answer 1

将以下内容添加到您的 Gemfile：

gem 'sass-rails', '>= 5.0.3'

然后做

bundle update sass-rails

Answer 2

当我为新克隆的 Rails 应用程序安装了正确版本的 Ruby 后，我的问题得到了解决 - 我安装了 2.4.1，但我的应用程序需要 2.3。