Fails with ActiveSupport 3.0-beta installed

[christocracy]

Hi, can't get it running. I recently installed Rails3 beta.

ford-2:sassafras-0.2.0 chris$ sassafras -b red
/usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:280:in activate': can't activate activesupport (= 2.3.5, runtime) for [], already activated activesupport-3.0.0.beta for ["sassafras-0.2.0"] (Gem::LoadError) from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:35:inrequire'
from /usr/local/lib/ruby/gems/1.8/gems/sassafras-0.2.0/lib/sassafras.rb:12
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:inrequire'
from /usr/local/lib/ruby/gems/1.8/gems/sassafras-0.2.0/bin/sassafras:11
from /usr/local/bin/sassafras:19:in `load'
from /usr/local/bin/sassafras:19
ford-2:sassafras-0.2.0 chris$