Rake db:migrate error

gistfile1.txt

Failed AddDevisetoUsers file

class AddDeviseToUsers < ActiveRecord::Migration
  def self.up
    change_table(:users) do |t|
      ## Database authenticatable
      t.string :email,              null: false, default: ""
      t.string :encrypted_password, null: false, default: ""

      ## Recoverable
      t.string   :reset_password_token
      t.datetime :reset_password_sent_at

      ## Rememberable
      t.datetime :remember_created_at

      ## Trackable
      t.integer  :sign_in_count, default: 0, null: false
      t.datetime :current_sign_in_at
      t.datetime :last_sign_in_at
      t.string   :current_sign_in_ip
      t.string   :last_sign_in_ip

      ## Confirmable
      # t.string   :confirmation_token
      # t.datetime :confirmed_at
      # t.datetime :confirmation_sent_at
      # t.string   :unconfirmed_email # Only if using reconfirmable

      ## Lockable
      # t.integer  :failed_attempts, default: 0, null: false # Only if lock strategy is :failed_attempts
      # t.string   :unlock_token # Only if unlock strategy is :email or :both
      # t.datetime :locked_at


      # Uncomment below if timestamps were not included in your original model.
      # t.timestamps
    end

    add_index :users, :email,                unique: true
    add_index :users, :reset_password_token, unique: true
    # add_index :users, :confirmation_token,   unique: true
    # add_index :users, :unlock_token,         unique: true
  end

  def self.down
    # By default, we don't want to make any assumption about how to roll back a migration when your
    # model already existed. Please edit below which fields you would like to remove in this migration.
    raise ActiveRecord::IrreversibleMigration
  end
end






   def check_pending!(connection = Base.connection)
        raise ActiveRecord::PendingMigrationError if ActiveRecord::Migrator.needs_migration?(connection)
      end

      def load_schema_if_pending!


Last migration: 

rake db:migrate
== 20150228023534 CreateLinks: migrating ======================================
-- create_table(:links)
   -> 0.0014s
== 20150228023534 CreateLinks: migrated (0.0015s) =============================

== 20150228053838 DeviseCreateUsers: migrating ================================
-- create_table(:users)
   -> 0.0017s
-- add_index(:users, :email, {:unique=>true})
   -> 0.0008s
-- add_index(:users, :reset_password_token, {:unique=>true})
   -> 0.0008s
== 20150228053838 DeviseCreateUsers: migrated (0.0034s) =======================

== 20150228060705 AddDeviseToUsers: migrating =================================
-- change_table(:users)
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

SQLite3::SQLException: duplicate column name: email: ALTER TABLE "users" ADD "email" varchar DEFAULT '' NOT NULL/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `initialize'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `new'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `prepare'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in `execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:333:in `block in execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract_adapter.rb:466:in `block in log'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activesupport-4.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract_adapter.rb:460:in `log'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:333:in `execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_statements.rb:381:in `add_column'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:458:in `add_column'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:563:in `block (3 levels) in <class:Table>'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:562:in `each'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:562:in `block (2 levels) in <class:Table>'
/Users/Home/Code/Raddit/Raddit/db/migrate/20150228060705_add_devise_to_users.rb:5:in `block in up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_statements.rb:351:in `change_table'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:662:in `block in method_missing'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `block in say_with_time'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `say_with_time'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:652:in `method_missing'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:417:in `method_missing'
/Users/Home/Code/Raddit/Raddit/db/migrate/20150228060705_add_devise_to_users.rb:3:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:569:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:609:in `exec_migration'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:590:in `block (2 levels) in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:589:in `block in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:588:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:765:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:995:in `block in execute_migration_in_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:1041:in `block in ddl_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/transaction.rb:188:in `within_new_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/transactions.rb:220:in `transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:1041:in `ddl_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:994:in `execute_migration_in_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:956:in `block in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:952:in `each'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:952:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:820:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:798:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
ActiveRecord::StatementInvalid: SQLite3::SQLException: duplicate column name: email: ALTER TABLE "users" ADD "email" varchar DEFAULT '' NOT NULL
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `initialize'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `new'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `prepare'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in `execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:333:in `block in execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract_adapter.rb:466:in `block in log'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activesupport-4.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract_adapter.rb:460:in `log'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:333:in `execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_statements.rb:381:in `add_column'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:458:in `add_column'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:563:in `block (3 levels) in <class:Table>'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:562:in `each'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:562:in `block (2 levels) in <class:Table>'
/Users/Home/Code/Raddit/Raddit/db/migrate/20150228060705_add_devise_to_users.rb:5:in `block in up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_statements.rb:351:in `change_table'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:662:in `block in method_missing'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `block in say_with_time'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `say_with_time'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:652:in `method_missing'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:417:in `method_missing'
/Users/Home/Code/Raddit/Raddit/db/migrate/20150228060705_add_devise_to_users.rb:3:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:569:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:609:in `exec_migration'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:590:in `block (2 levels) in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:589:in `block in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:588:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:765:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:995:in `block in execute_migration_in_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:1041:in `block in ddl_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/transaction.rb:188:in `within_new_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/transactions.rb:220:in `transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:1041:in `ddl_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:994:in `execute_migration_in_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:956:in `block in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:952:in `each'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:952:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:820:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:798:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
SQLite3::SQLException: duplicate column name: email
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `initialize'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `new'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `prepare'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in `execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:333:in `block in execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract_adapter.rb:466:in `block in log'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activesupport-4.2.0/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract_adapter.rb:460:in `log'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:333:in `execute'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_statements.rb:381:in `add_column'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:458:in `add_column'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:563:in `block (3 levels) in <class:Table>'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:562:in `each'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_definitions.rb:562:in `block (2 levels) in <class:Table>'
/Users/Home/Code/Raddit/Raddit/db/migrate/20150228060705_add_devise_to_users.rb:5:in `block in up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/schema_statements.rb:351:in `change_table'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:662:in `block in method_missing'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `block in say_with_time'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:632:in `say_with_time'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:652:in `method_missing'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:417:in `method_missing'
/Users/Home/Code/Raddit/Raddit/db/migrate/20150228060705_add_devise_to_users.rb:3:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:569:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:609:in `exec_migration'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:590:in `block (2 levels) in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:589:in `block in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:588:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:765:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:995:in `block in execute_migration_in_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:1041:in `block in ddl_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/transaction.rb:188:in `within_new_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/transactions.rb:220:in `transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:1041:in `ddl_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:994:in `execute_migration_in_transaction'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:956:in `block in migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:952:in `each'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:952:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:820:in `up'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/migration.rb:798:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
/Users/Home/.rvm/gems/ruby-2.2.0/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)