bin/rake db:migrate issue

Good day all, while working in the todo list building module, i have hit a snag while running the bin/rake db:migrate command. Below is the command prompt error i get:

Shawns-MacBook-Pro:ToDo TaurenLTD1$ bin/rake db:migrate == 20150323182937 CreateTodoItems: migrating ================================== -- create_table(:todo_items) rake aborted! StandardError: An error has occurred, this and all later migrations canceled:

undefined method refrences' for #<ActiveRecord::ConnectionAdapters::TableDefinition:0x007fe9e206b6d8>/Users/TaurenLTD1/Desktop/projects/sample/ToDo/db/migrate/20150323182937_create_todo_items.rb:4:inblock in change'

I have refrenced line 4 and it was not what appeared in the video, in the video it showed the following:

class CreateTodoItems < ActiveRecord::Migration def change create_table :todo_items do |t| t.refrences :todo_list, index: true t.string :content

  t.timestamps null: false
end

end end

my generated model showed the following:

class CreateTodoItems < ActiveRecord::Migration def change create_table :todo_items do |t| t.refrences :todo_list t.string :content

  t.timestamps null: false
end

end end

as you can see the only difference is on line 4 ( t.refrences:todo_list) i have run both adding the ( ,index: true ) but both times i run the rake db:migrate i get the same error refrencing line 4.. can figure out where im going wrong here.