在任何源中都找不到 rake-12.2.1 (Bundler::GemNotFound)答案

【问题标题】：Could not find rake-12.2.1 in any of the sources (Bundler::GemNotFound)在任何源中都找不到 rake-12.2.1 (Bundler::GemNotFound)
【发布时间】：2018-04-08 21:45:08
【问题描述】：

运行rails g controller 命令后，我发现这是我的错误：

在任何源中都找不到 rake-12.2.1 (Bundler::GemNotFound)

/usr/lib/ruby/vendor_ruby/bundler/spec_set.rb:87:in block in materialize': Could not find rake-12.2.1 in any of the sources (Bundler::GemNotFound) from /usr/lib/ruby/vendor_ruby/bundler/spec_set.rb:81:inmap!'从 /usr/lib/ruby/vendor_ruby/bundler/spec_set.rb:81:in materialize' from /usr/lib/ruby/vendor_ruby/bundler/definition.rb:159:inspecs' 来自 /usr/lib/ruby/vendor_ruby/bundler/definition.rb:218:in specs_for' from /usr/lib/ruby/vendor_ruby/bundler/definition.rb:207:inrequested_specs' 来自 /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:109:in block in definition_method' from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:21:insetup' 来自 /usr/lib/ruby/vendor_ruby/bundler.rb:101:in setup' from /usr/lib/ruby/vendor_ruby/bundler/setup.rb:20:in' 从 /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in require' from /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:inrequire' 来自 /root/Desktop/blog/vendor/bundle/ruby/2.3.0/gems/spring-2.0.2/lib/spring/commands.rb:33:in <module:Spring>' from /root/Desktop/blog/vendor/bundle/ruby/2.3.0/gems/spring-2.0.2/lib/spring/commands.rb:4:in' 来自 /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in require' from /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:inrequire' 来自 /root/Desktop/blog/vendor/bundle/ruby/2.3.0/gems/spring-2.0.2/lib/spring/server.rb:9:in <top (required)>' from /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:inrequire' 来自 /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in require' from /root/Desktop/blog/vendor/bundle/ruby/2.3.0/gems/spring-2.0.2/lib/spring/client/server.rb:9:incall' 来自 /root/Desktop/blog/vendor/bundle/ruby/2.3.0/gems/spring-2.0.2/lib/spring/client/command.rb:7:in call' from /root/Desktop/blog/vendor/bundle/ruby/2.3.0/gems/spring-2.0.2/lib/spring/client.rb:30:inrun' 来自 /root/Desktop/blog/vendor/bundle/ruby/2.3.0/gems/spring-2.0.2/bin/spring:49:in `'

【问题讨论】：

你运行bundle install了吗？尝试使用bundle exec 运行它。
我已经完成了
gem install rake
把它放在你的 gem 文件中 gem install rake -v '12.2.1'

标签： ruby-on-rails ruby

【解决方案1】：

我遇到了同样的问题。我通过选择不同版本的 ruby SDK 来修复它。在我的情况下，它是通过选择 2.4.2 而不是 2.3.3，我相信它默认安装在 mac os 上。

【讨论】：