Ruby 2.0 RPM - Rails can't find psych

[Vít Ondruch]

Dne 27.3.2013 00:28, Peter Deffendol napsal(a):
> Hi,
>
> I rebuilt the ruby-2.0.0.0-6 packages on CentOS 6 (requiring a couple of slight modifications to the spec file) and ran into some trouble:
>
> [pete at centos railstest]$ ./script/rails c
>
> /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:7:in `require': cannot load such file -- psych (LoadError)
> 	from /usr/share/ruby/yaml.rb:7:in `<top (required)>'
> <snip>
>
> I have all of the relevant packages installed - rubygem-psych, libyaml (from EPEL).
>
> If I run an irb session, it loads correctly:
>
> [pete at centos ~]$ irb
> irb(main):001:0> require 'yaml'
> => true
>
> I'm not sure where to look.  The load path is identical in both situations (puts $:)
>
> /usr/local/share/ruby/site_ruby
> /usr/local/lib64/ruby/site_ruby
> /usr/share/ruby/vendor_ruby
> /usr/lib64/ruby/vendor_ruby
> /usr/share/rubygems
> /usr/share/ruby
> /usr/lib64/ruby/
>
>
> Can anyone confirm if this also occurs on the Fedora-built packages, and have any idea as to why this is happening?

This seems to be Bundler issue IMO. You should add Psych into your Gemfile.

Vít.