ROR + An error occurred while installing kgio (2.8.0), and Bundler cannot continue

Question

Same Question I think : Rails-Unicorn-Install-Error-KGIO

While running bundle install, system is giving error for installing gems.

Gem files will remain installed in c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9
.1/gems/kgio-2.8.0 for inspection.
Results logged to c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/kgio-2.8.
0/ext/kgio/gem_make.out
An error occurred while installing kgio (2.8.0), and Bundler cannot continue.
Make sure that `gem install kgio -v '2.8.0'` succeeds before bundling.

Here I am unable to install kgio gem. I tried a lot but no success. Is there any way to come out of this.

Thanks in advance.

Answer 1

If you are running Windows 7:

Error Installing "kgio-2.9.2" Gem on Windows

platforms :ruby do gem 'unicorn' end

Answer 2

Removed the Unicorn gem from gem list.

gem 'unicorn'