Can't run test app with Rails 4

[tonypolik]

Running bundle install gives me this error message:

Bundler could not find compatible versions for gem "activerecord":
  In Gemfile:
    generator_spec (~> 0.8.7) ruby depends on
      activerecord (< 4.0, >= 3.0) ruby

    rails (>= 3.1.0) ruby

[ascoppa]

I ran it using rails 4.01 without problems :+1:

activerecord (4.0.1)