2.2 Localization problem

I18n.locale = "en"

=> "en"

I18n.t 'date.formats.short'

I18n::MissingInterpolationArgument: interpolation argument count missing in "%b {{count}}"   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/vendor/i18n-0.0.1/i18n/backend/simple.rb:161:in `interpolate_without_deprecated_syntax'   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/vendor/i18n-0.0.1/i18n/backend/simple.rb:153:in `gsub'   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/vendor/i18n-0.0.1/i18n/backend/simple.rb:153:in `interpolate_without_deprecated_syntax'   from /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/i18n_interpolation_deprecation.rb:21:in `interpolate'   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/vendor/i18n-0.0.1/i18n/backend/simple.rb:41:in `translate'   from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/vendor/i18n-0.0.1/i18n.rb:160:in `t'   from (irb):7