Question

When I type rails server in my CMD the server works and I can go to localhost:3000.
But after i get this messege in the CMD and the same message in the browser on localhost:3000 in the errors section.

Started GET "/rails/info/properties" for 127.0.0.1 at 2010-12-02 21:14:55 +0200

Mysql2::Error (Access denied for user 'root'@'localhost' (using password: NO)):

Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc
h/middleware/templates/rescues/_trace.erb (1.0ms)
Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc
h/middleware/templates/rescues/_request_and_response.erb (30.0ms)
Rendered C:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatc
h/middleware/templates/rescues/diagnostics.erb within rescues/layout (97.0ms)

What is the issue?

here this is the database.yml file:

# MySQL. Versions 4.1 and 5.0 are
recommended.
#
# Install the MySQL driver:
# gem install mysql2
#
# And be sure to use new-style password hashing:
# http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: simple_cms_development
pool: 5
username: root
password:
host: localhost

# 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:
adapter: mysql2
encoding: utf8
reconnect: false
database: simple_cms_test
pool: 5
username: root
password:
host: localhost

production:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: simple_cms_production
  pool: 5
  username: root
  password:passwordex
  host: localhost

Answer 1

You’re using root for your mysql user, but not supplying the root password in config/database.yml.

Incidentally, while its usually ok in development, using the root mysql user in production or for staging is a Very Bad Idea™.

here’s a typical mysql config section:

production:
  adapter: mysql
  database: app_production
  username: root
  password: password
  pool: 5
  timeout: 5000
  encoding: utf8