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