无法运行rails服务器：`require’：无法加载此类文件–net / ssh（LoadError）

我正在尝试使用michael hartl指南在轨道上学习ruby。 在过去，我能够完成新的rails webapp的设置。 现在，当我尝试运行服务器时，我收到此错误：

/home/ss/.rvm/gems/ruby-2.2.2/gems/fog-1.26.0/lib/fog/joyent/compute.rb:3:in `require': cannot load such file -- net/ssh (LoadError) from /home/ss/.rvm/gems/ruby-2.2.2/gems/fog-1.26.0/lib/fog/joyent/compute.rb:3:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/fog-1.26.0/lib/fog/joyent.rb:1:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/fog-1.26.0/lib/fog/joyent.rb:1:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/fog-1.26.0/lib/fog.rb:41:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/fog-1.26.0/lib/fog.rb:41:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:3:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:3:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/carrierwave-0.10.0/lib/carrierwave/storage.rb:9:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/carrierwave-0.10.0/lib/carrierwave/storage.rb:9:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/carrierwave-0.10.0/lib/carrierwave.rb:78:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/carrierwave-0.10.0/lib/carrierwave.rb:78:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each' from /home/ss/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each' from /home/ss/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler.rb:134:in `require' from /home/ss/workspace/hartl/sample_app/config/application.rb:7:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:78:in `require' from /home/ss/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:78:in `block in server' from /home/ss/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `tap' from /home/ss/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:75:in `server' from /home/ss/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /home/ss/.rvm/gems/ruby-2.2.2/gems/railties-4.2.2/lib/rails/commands.rb:17:in `' from /home/ss/workspace/hartl/sample_app/bin/rails:10:in `require' from /home/ss/workspace/hartl/sample_app/bin/rails:10:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `load' from /home/ss/.rvm/gems/ruby-2.2.2/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `call' from /home/ss/.rvm/gems/ruby-2.2.2/gems/spring-1.1.3/lib/spring/client/command.rb:7:in `call' from /home/ss/.rvm/gems/ruby-2.2.2/gems/spring-1.1.3/lib/spring/client.rb:26:in `run' from /home/ss/.rvm/gems/ruby-2.2.2/gems/spring-1.1.3/bin/spring:48:in `' from /home/ss/.rvm/gems/ruby-2.2.2/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `load' from /home/ss/.rvm/gems/ruby-2.2.2/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `' from /home/ss/workspace/hartl/sample_app/bin/spring:13:in `require' from /home/ss/workspace/hartl/sample_app/bin/spring:13:in `' from bin/rails:4:in `load' from bin/rails:4:in `' 

Answer 1

或者，将其添加到您的Gemfile：

 gem 'fog', '~> 1.36.0' 

并运行bundle install 。 这对我1.35.0 ，因为我遇到了1.35.0引入的错误： https ： //github.com/fog/fog/issues/3765

Answer 2

将其添加到您的Gemfile：

 gem 'net-ssh' 

然后运行bundle install 。