Factory girl traits not working

antvatar_part_category.rb

FactoryGirl.define do
  factory :antvatar_part_category do
    sequence(:name) {|n| "Category #{n}"}
    trait :current_seasonal do
      started_on {1.week.ago}
      stopped_on {1.week.from.now}
    end
    trait :sesonal_ended do
      stopped_on {1.week.ago}
    end
    trait :seasonal_future do
      started_on {1.week.from.now}
    end
  end
end

antvatar_part_category_spec.rb

require File.dirname(__FILE__) + '/../spec_helper'

describe AntvatarPartCategory do
  describe "factory" do
    subject {FactoryGirl.create :antvatar_part_category}
    it{should be_valid}
  end
…
  describe "scopes" do
    describe "#current_seasonal" do
      let(:start_and_end){FactoryGirl.create( :antvatar_part_category, :current_seasonal)}
      let(:end_only){FactoryGirl.create :antvatar_part_category, :current_seasonal, stared_on:nil}
      let(:start_only){FactoryGirl.create :antvatar_part_category, :current_seasonal, stopped_on:nil}
      let(:nonseasonal){FactoryGirl.create :antvatar_part_category}
      let(:ended){FactoryGirl.create :antvatar_part_category, :seasonal_ended}
      let(:future){FactoryGirl.create :antvatar_part_category, :seasonal_future}
      subject{AntvatarPartCategory.current_seasonal}
      it {should include(start_and_end)}
      it {should include(end_only)}
      it {should include(start_only)}
      it {should_not include(nonseasonal)}
      it {should_not include(ended)}
      it {should_not include(future)}
    end
  end
end

spec_helper.rb

  require 'factory_girl'
  FactoryGirl.reload

spec_report

Failures:

  1) AntvatarPartCategory scopes#current_seasonal 
     Failure/Error: let(:start_and_end){FactoryGirl.create( :antvatar_part_category, :current_seasonal)}
     NoMethodError:
       undefined method `symbolize_keys' for :current_seasonal:Symbol
     # ./spec/models/antvatar_part_category_spec.rb:18:in `block (4 levels) in <top (required)>'
     # ./spec/models/antvatar_part_category_spec.rb:25:in `block (4 levels) in <top (required)>'

  2) AntvatarPartCategory scopes#current_seasonal 
     Failure/Error: let(:end_only){FactoryGirl.create :antvatar_part_category, :current_seasonal, stared_on:nil}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # ./spec/models/antvatar_part_category_spec.rb:19:in `block (4 levels) in <top (required)>'
     # ./spec/models/antvatar_part_category_spec.rb:26:in `block (4 levels) in <top (required)>'

  3) AntvatarPartCategory scopes#current_seasonal 
     Failure/Error: let(:start_only){FactoryGirl.create :antvatar_part_category, :current_seasonal, stopped_on:nil}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # ./spec/models/antvatar_part_category_spec.rb:20:in `block (4 levels) in <top (required)>'
     # ./spec/models/antvatar_part_category_spec.rb:27:in `block (4 levels) in <top (required)>'

  4) AntvatarPartCategory scopes#current_seasonal 
     Failure/Error: let(:ended){FactoryGirl.create :antvatar_part_category, :seasonal_ended}
     NoMethodError:
       undefined method `symbolize_keys' for :seasonal_ended:Symbol
     # ./spec/models/antvatar_part_category_spec.rb:22:in `block (4 levels) in <top (required)>'
     # ./spec/models/antvatar_part_category_spec.rb:29:in `block (4 levels) in <top (required)>'

  5) AntvatarPartCategory scopes#current_seasonal 
     Failure/Error: let(:future){FactoryGirl.create :antvatar_part_category, :seasonal_future}
     NoMethodError:
       undefined method `symbolize_keys' for :seasonal_future:Symbol
     # ./spec/models/antvatar_part_category_spec.rb:23:in `block (4 levels) in <top (required)>'
     # ./spec/models/antvatar_part_category_spec.rb:30:in `block (4 levels) in <top (required)>'