`必要 '：そのようなファイルをロードすることはできません - FFI（とLoadError）`が必要です'：そのようなファイルをロードすることはできません - FFI（とLoadError）レールコンソールに

Question

のフルスタックトレースを開始しようとすると：

/Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require': cannot load such file -- ffi (LoadError) 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/sys-proctable-1.1.1-universal-darwin/lib/darwin/sys/proctable.rb:2:in `<top (required)>' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/sys-proctable-1.1.1-universal-darwin/lib/sys-proctable.rb:1:in `<top (required)>' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/bundler-1.10.6/lib/bundler.rb:134:in `require' 
    from /Users/galharth/Documents/productbattle/config/application.rb:7:in `<top (required)>' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:141:in `require' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:141:in `require_application_and_environment!' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:67:in `console' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!' 
    from /Users/galharth/.rvm/gems/ruby-2.3.0/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>' 
    from bin/rails:4:in `require' 
    from bin/rails:4:in `<main>' 

Railsのバージョンを：4.2.5 Rubyのバージョン：2.3.0 バンドラーのバージョン：1.10.6 OSX：エルキャピタン（ウィンドウを使用して同僚）

Answer 1

がgem install ffi --platform=rubyを実行してみてください。

詳細と詳細については、this issueを参照してください。