# bundle install
Fetching source index from https://rubygems.org/
/usr/share/ruby/yaml.rb:6:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
/usr/share/ruby/yaml.rb:6:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:45:in `require': cannot load such file -- psych (LoadError)
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:45:in `require'
        from /usr/share/ruby/yaml.rb:7:in `<top (required)>'
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:45:in `require'
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:45:in `require'
        from /usr/share/rubygems/rubygems.rb:595:in `load_yaml'
        from /usr/share/rubygems/rubygems/config_file.rb:313:in `load_file'
        from /usr/share/rubygems/rubygems/config_file.rb:190:in `initialize'
        from /usr/share/rubygems/rubygems.rb:319:in `new'
        from /usr/share/rubygems/rubygems.rb:319:in `configuration'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/rubygems_integration.rb:34:in `configuration'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/rubygems_integration.rb:53:in `sources='
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/source/rubygems.rb:250:in `ensure in remote_specs'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/source/rubygems.rb:250:in `remote_specs'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/source/rubygems.rb:163:in `fetch_specs'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/source/rubygems.rb:67:in `specs'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/lazy_specification.rb:52:in `__materialize__'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/spec_set.rb:88:in `block in materialize'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/spec_set.rb:85:in `map!'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/spec_set.rb:85:in `materialize'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/definition.rb:114:in `specs'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/definition.rb:109:in `resolve_remotely!'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/installer.rb:83:in `run'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/installer.rb:14:in `install'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/cli.rb:247:in `install'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/vendor/thor/task.rb:27:in `run'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/vendor/thor/invocation.rb:120:in `invoke_task'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/vendor/thor.rb:344:in `dispatch'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/vendor/thor/base.rb:434:in `start'
        from /usr/local/share/gems/gems/bundler-1.3.5/bin/bundle:20:in `block in <top (required)>'
        from /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/friendly_errors.rb:3:in `with_friendly_errors'
        from /usr/local/share/gems/gems/bundler-1.3.5/bin/bundle:20:in `<top (required)>'
        from /usr/local/bin/bundle:23:in `load'
        from /usr/local/bin/bundle:23:in `<main>'