bundler problem

loki:spree[master]$ bundle install
Updating git://github.com/thoughtbot/shoulda.git
Fetching git://github.com/pluginaweek/state_machine.git
0 blocks
Fetching git://github.com/Shopify/active_merchant.git
0 blocks
Fetching git://github.com/schof/searchlogic.git
0 blocks
Updating git://github.com/BDQ/resource_controller.git
Fetching source index from http://gemcutter.org/
Updating git://github.com/BDQ/resource_controller.git
Updating git://github.com/schof/searchlogic.git
Updating git://github.com/Shopify/active_merchant.git
Updating git://github.com/pluginaweek/state_machine.git
Updating git://github.com/thoughtbot/shoulda.git
No compatible versions could be found for required dependencies:
    Conflict on: "rails":
    * rails (3.0.0.beta4) activated by factory_girl_rails (>= 1.0.0, runtime)
    * rails (>= 3.0.0.rc, runtime) required by spree (>= 0, runtime)
    All possible versions of origin requirements conflict.