`require': cannot load such file -- ffi (LoadError) `require': cannot load such file -- ffi (LoadError) when trying to start rails console

Question

Full stack trace:

/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 version: 4.2.5 Ruby version: 2.3.0 Bundler version: 1.10.6 OSX: El Capitan (Co-worker using windows)

Answer 1

Try running gem install ffi --platform=ruby.

See this issue for more insight and resolution options.