jekyll package error

gistfile1.txt

/opt/jekyll/embedded/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find jekyll (>= 0) amongst [RedCloth-4.2.9, actionmailer-4.1.4, actionmailer-4.1.1, actionmailer-4.0.3, actionpack-4.1.4, actionpack-4.1.1, actionpack-4.0.3, actionview-4.1.4, actionview-4.1.1, activemodel-4.1.4, activemodel-4.1.1, activemodel-4.0.3, activerecord-4.1.4, activerecord-4.1.1, activerecord-4.0.3, activerecord-deprecated_finders-1.0.3, activesupport-4.1.4, activesupport-4.1.1, activesupport-4.0.3, arel-5.0.1.20140414130214, arel-4.0.2, bigdecimal-1.2.5, blankslate-3.1.3, blankslate-2.1.2.4, builder-3.2.2, builder-3.1.4, bundler-1.6.5, bundler-1.6.2, bundler-unload-1.0.2, celluloid-0.16.0.pre3, celluloid-0.16.0.pre2, celluloid-0.15.2, chunky_png-1.3.1, classifier-1.3.4, classifier-reborn-2.0.1, coffee-rails-4.0.1, coffee-script-2.3.0, coffee-script-2.2.0, coffee-script-source-1.7.1, coffee-script-source-1.7.0, colorator-0.1, commander-4.2.0, commander-4.1.6, compass-0.12.7, compass-0.12.6, erubis-2.7.0, execjs-2.2.1, execjs-2.2.0, execjs-2.1.0, execjs-2.0.2, executable-hooks-1.3.2, executable-hooks-1.3.1, fast-stemmer-1.0.2, ffi-1.9.3, fssm-0.2.10, gem-wrappers-1.2.5, gem-wrappers-1.2.4, haml-4.0.5, highline-1.6.21, hike-2.1.3, hike-1.2.3, hitimes-1.2.2, i18n-0.6.11, i18n-0.6.10, i18n-0.6.9, jbuilder-2.1.3, jbuilder-2.0.7, jbuilder-1.5.3, jekyll-coffeescript-1.0.1, jekyll-coffeescript-1.0.0, jekyll-date-format-1.0.1, jekyll-date-format-1.0.0, jekyll-gist-1.1.0, jekyll-page-hooks-1.3.1, jekyll-page-hooks-1.2.0, jekyll-paginate-1.0.0, jekyll-sass-converter-1.2.1, jekyll-sass-converter-1.1.0, jekyll-sass-converter-1.0.0, jekyll-sitemap-0.6.0, jekyll-sitemap-0.4.1, jekyll-watch-1.1.1, jekyll-watch-1.0.0, jquery-rails-3.1.1, jquery-rails-3.1.0, kramdown-1.4.0, liquid-2.6.1, liquid-2.5.5, listen-2.7.9, listen-1.3.1, mail-2.6.1, mail-2.5.4, maruku-0.7.2, mercenary-0.3.4, mercenary-0.3.3, mime-types-2.3, mime-types-1.25.1, minitest-5.4.0, minitest-5.3.4, multi_json-1.10.1, parslet-1.6.1, parslet-1.5.0, pg-0.17.1, polyglot-0.3.5, polyglot-0.3.4, posix-spawn-0.3.8, pygments.rb-0.6.0, pygments.rb-0.5.4, rack-1.5.2, rack-protection-1.5.3, rack-test-0.6.2, rails-4.1.4, rails-4.1.1, rails-4.0.3, rails_12factor-0.0.2, rails_serve_static_assets-0.0.2, rails_stdout_logging-0.0.3, railties-4.1.4, railties-4.1.1, railties-4.0.3, rake-10.3.2, rb-fsevent-0.9.4, rb-inotify-0.9.5, rb-inotify-0.9.4, rb-kqueue-0.2.3, rdiscount-2.0.7.3, rdoc-4.1.1, redcarpet-3.1.2, redcarpet-2.3.0, rubygems-bundler-1.4.4, rubygems-bundler-1.4.3, rubypants-0.2.0, rvm-1.11.3.9, safe_yaml-1.0.3, safe_yaml-0.9.7, sass-3.4.5, sass-3.3.11, sass-3.3.8, sass-3.2.19, sass-globbing-1.0.0, sass-rails-4.0.3, sdoc-0.4.0, sinatra-1.4.5, spring-1.1.3, sprockets-2.12.1, sprockets-2.11.0, sprockets-rails-2.1.3, sprockets-rails-2.0.1, sqlite3-1.3.9, stringex-1.4.0, test-unit-2.5.5, thor-0.19.1, thread_safe-0.3.4, thread_safe-0.3.3, tilt-2.0.1, tilt-1.4.1, timers-4.0.0, timers-3.0.1, timers-1.1.0, toml-0.1.1, treetop-1.5.3, treetop-1.4.15, turbolinks-2.2.2, tzinfo-1.2.1, tzinfo-1.2.0, tzinfo-0.3.39, uglifier-2.5.3, uglifier-2.5.0, yajl-ruby-1.2.1, yajl-ruby-1.1.0] (Gem::LoadError)
	from /opt/jekyll/embedded/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
	from /opt/jekyll/embedded/lib/ruby/site_ruby/1.9.1/rubygems.rb:1231:in `gem'
	from /opt/jekyll/bin/jekyll:22:in `<main>'