ruby on rails - ActiveRecord model subclass NoMethodError on 'create' -

i've got rails 4 beta app (on ruby 2) , i'm getting error can't make sense out of.

i've got specs failing because model class has no method 'create', though i'm inheriting activerecord::base. error message calling class module (undefined method 'create' topic:module), , seems odd.

spec/models/topic_spec.rb:

require "spec_helper"  describe topic     "should create new topic given valid attributes"         topic.create!({:created_by_id => 1, :title => "test" })     end end 

app/models/topic.rb

class topic < activerecord::base     include activemodel::forbiddenattributesprotection      validates :title => :presence => ture     validates :created_by_id => :presence => true end 

error message:

$ rspec spec/models/topic_spec.rb      f      failures:        1) topic should create new topic given valid attributes          failure/error: topic.create!({:created_by_id => 1, :title => "test" })          nomethoderror:            undefined method `create' topic:module          # ./spec/models/topic_spec.rrc:15:in `block (2 levels) in <top (required)>' 

it sounds have module or namespace named topic getting loaded first , in tests, topic not referring class. there other files have topic in them, class topic::question or similar? if so, try taking them out or being explicit it. example, changing:

class topic::question < activerecord::base 

to

class topic   class question < activerecord::base