rails db:schema:dump

Mysql2::Error: Access denied for user 'rails_user'@'localhost' (using password:
YES)
bin/rails:4:in `require'
bin/rails:4:in `<main>'
Tasks: TOP => db:schema:dump
(See full trace by running task with --trace)

default: &default
  adapter: mysql2
  encoding: utf8
  pool: 5
  username: rails_user
  password: grace0512
  host: localhost

development:
  <<: *default
  database: test_project_development

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: test_project_test

grant all on simple_cms_development.* to 'rails_user'@'localhost' identified by '<password>';
flush privileges;