Issue with active model serializer

[tomoguisuru]

Hi,

I'm trying to use ember-schema with a simple todo app's api. When querying the API from a browser or curl, the response comes back correctly but when I try to run 'rake migrate' I get the following error

#<NoMethodError: undefined method `_options' for TodoSerializer:Class>
/Users/brandon/.rvm/gems/ruby-2.2.2/gems/ember-schema-0.0.2/lib/ember/schema/active_model.rb:37:in `block in schema'
/Users/brandon/.rvm/gems/ruby-2.2.2/gems/ember-schema-0.0.2/lib/ember/schema/active_model.rb:36:in `each'
/Users/brandon/.rvm/gems/ruby-2.2.2/gems/ember-schema-0.0.2/lib/ember/schema/active_model.rb:36:in `schema'
/Users/brandon/.rvm/gems/ruby-2.2.2/gems/ember-schema-0.0.2/lib/ember/schema.rb:35:in `block in generate'
/Users/brandon/.rvm/gems/ruby-2.2.2/gems/ember-schema-0.0.2/lib/ember/schema.rb:22:in `each'
/Users/brandon/.rvm/gems/ruby-2.2.2/gems/ember-schema-0.0.2/lib/ember/schema.rb:22:in `generate'
/Users/brandon/.rvm/gems/ruby-2.2.2/gems/ember-schema-0.0.2/lib/tasks/ember.rake:9:in `block (3 levels) in <top (required)>'

I also had to add a 'self.final_name' method before getting the above error.

Not sure what's going on since there isn't anything fancy happening and the project is extremely basic.