Error while building native extensions for capybara-webkit
问题 I'm trying to install the webkit driver for capybara on Windows, and I'm getting the following error: $ gem install capybara-webkit-0.12.1.gem Temporarily enhancing PATH to include DevKit... Building native extensions. This could take a while... ERROR: Error installing capybara-webkit-0.12.1.gem: ERROR: Failed to build gem native extension. c:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb Gem files will remain installed in c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara