db:migrate with postgres. How to fix users already exists - ruby-on-rails-3

Question

Have another question on here and am trying not to ask to many but keep hitting walls left and right. Running db:migrate with postgres and getting the below error. How to fix users already exists?
$ rake db:migrate
== CreateUsers: migrating ====================================================
-- create_table(:users)
NOTICE: CREATE TABLE will create implicit sequence "users_id_seq1" for serial column "users.id"
rake aborted!
An error has occurred, this and all later migrations canceled:
PGError: ERROR: relation "users" already exists
: CREATE TABLE "users" ("id" serial primary key, "first_name" character varying(25), "last_name" character varying(50), "email" character varying(255) DEFAULT '' NOT NULL, "password" character varying(40), "created_at" timestamp, "updated_at" timestamp)
Tasks: TOP => db:migrate
rb file below
class CreateUsers < ActiveRecord::Migration
def up
create_table :users do |t|
t.string "first_name", :limit => 25
t.string "last_name", :limit => 50
t.string "email", :default => "", :null => false
t.string "password", :limit => 40
t.timestamps
end
end
def down
drop_table :users
end
end

Answer 1

You can place a command before the create_table :users do |t| to drop the table do drop_table :users. ONLY DO THIS IF YOU HAVE NO DATA TO LOSE!
If you want to added columns put add_column for each line eg. add_column :users, :name, :string