Nasıl düzeltileceğine dair herhangi bir öneriniz var mı?
gem install capybara-webkit -v '0.11.0'
Building native extensions. This could take a while...
ERROR: Error installing capybara-webkit:
ERROR: Failed to build gem native extension.
/home/durrantm/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb
sh: qmake: not found
Gem files will remain installed in /home/durrantm/.rvm/gems/ruby-1.9.3-p194/gems/capybara-webkit-0.11.0 for inspection.
Results logged to /home/durrantm/.rvm/gems/ruby-1.9.3-p194/gems/capybara-webkit-0.11.0/./gem_make.out