reconcubed@blccit:~/workspace (master) $ rake db:seed
You have 2 pending migrations:
  20150509125146 CreateQuestions
  20150509125245 CreateAnswers
Run `rake db:migrate` to update your database then try again.
reconcubed@blccit:~/workspace (master) $ rake db:migrate
== 20150509125146 CreateQuestions: migrating ==================================
-- create_table(:questions)
-- has_many(:answers)
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

undefined method `has_many' for #<CreateQuestions:0x00000006b93010>/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:648:in `block in method_missing'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `block in say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:641:in `method_missing'
/home/ubuntu/workspace/db/migrate/20150509125146_create_questions.rb:7:in `block in change'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/schema_statements.rb:198:in `create_table'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:649:in `block in method_missing'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `block in say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:641:in `method_missing'
/home/ubuntu/workspace/db/migrate/20150509125146_create_questions.rb:3:in `change'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:595:in `exec_migration'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:579:in `block (2 levels) in migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:578:in `block in migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:577:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:752:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:991:in `block in execute_migration_in_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:1037:in `block in ddl_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/database_statements.rb:201:in `block in transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/database_statements.rb:209:in `within_new_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/database_statements.rb:201:in `transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/transactions.rb:208:in `transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:1037:in `ddl_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:990:in `execute_migration_in_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:952:in `block in migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:948:in `each'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:948:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:807:in `up'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:785:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/railties/databases.rake:34:in `block (2 levels) in <top (required)>'
NoMethodError: undefined method `has_many' for #<CreateQuestions:0x00000006b93010>
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:648:in `block in method_missing'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `block in say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:641:in `method_missing'
/home/ubuntu/workspace/db/migrate/20150509125146_create_questions.rb:7:in `block in change'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/schema_statements.rb:198:in `create_table'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:649:in `block in method_missing'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `block in say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:621:in `say_with_time'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:641:in `method_missing'
/home/ubuntu/workspace/db/migrate/20150509125146_create_questions.rb:3:in `change'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:595:in `exec_migration'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:579:in `block (2 levels) in migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:578:in `block in migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:577:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:752:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:991:in `block in execute_migration_in_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:1037:in `block in ddl_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/database_statements.rb:201:in `block in transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/database_statements.rb:209:in `within_new_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/connection_adapters/abstract/database_statements.rb:201:in `transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/transactions.rb:208:in `transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:1037:in `ddl_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:990:in `execute_migration_in_transaction'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:952:in `block in migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:948:in `each'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:948:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:807:in `up'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/migration.rb:785:in `migrate'
/usr/local/rvm/gems/ruby-2.1.5@rails4/gems/activerecord-4.1.6/lib/active_record/railties/databases.rake:34:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)


problematic code;
Questions Model
class CreateQuestions < ActiveRecord::Migration
  def change
    create_table :questions do |t|
      t.string :title
      t.text :body
      t.boolean :resolved
      has_many :answers
      t.timestamps
    end
  end
end


ANswers
class CreateAnswers < ActiveRecord::Migration
  def change
    create_table :answers do |t|
      t.text :body
      t.references :question, index: true
      belongs_to :question
      t.timestamps
    end
  end
end