mySQL: ERROR 1045: Access denied for user 'root'@'localhost' (using password: NO)

Hello, I am using InstantRails 2.0 on windows.
When building an app,I get this error when hit the browser(Action
ControllerException caught):

Access denied for user ‘root’@‘localhost’ (using password: NO)

The database.yml file is configured like this:

MySQL. Versions 4.1 and 5.0 are recommended.

Install the MySQL driver:

gem install mysql

On Mac OS X:

sudo gem install mysql – --with-mysql-dir=/usr/local/mysql

On Mac OS X Leopard:

sudo env ARCHFLAGS="-arch i386" gem install mysql – --with-mysql-

config=/usr/local/mysql/bin/mysql_config

This sets the ARCHFLAGS environment variable to your native

architecture

On Windows:

gem install mysql

Choose the win32 build.

Install MySQL and put its /bin directory on your path.

And be sure to use new-style password hashing:

http://dev.mysql.com/doc/refman/5.0/en/old-client.html

development:
adapter: mysql
encoding: utf8
database: library_development
username: root
password: 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: mysql
encoding: utf8
database: library_test
username: root
password: password
host: localhost

production:
adapter: mysql
encoding: utf8
database: library_production
username: root
password: password
host: localhost

The development log is showing like this

"
Rendering C:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/
actionpack-2.0.2/lib/action_controller/templates/rescues/layout.erb
(internal_server_error)

Processing BookController#index (for 127.0.0.1 at 2012-01-05 13:22:31)
[GET]
Session ID:
BAh7BiIKZmxhc2hJQzonQWN0aW9uQ29udHJvbGxlcjo6Rmxhc2g6OkZsYXNo
%0ASGFzaHsABjoKQHVzZWR7AA%3D%3D–
d8a35d2303977ea5f70494b175549ff7959c5ee9
Parameters: {“action”=>“index”, “controller”=>“book”}

Mysql::Error (Access denied for user ‘root’@‘localhost’ (using
password: NO)):
C:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/
activerecord-2.0.2/lib/active_record/connection_adapters/
mysql_adapter.rb:471:in real_connect' C:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/ activerecord-2.0.2/lib/active_record/connection_adapters/ mysql_adapter.rb:471:inconnect’
C:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/
activerecord-…
"

On 5 January 2012 08:20, Pallav_bfs [email protected] wrote:

gem install mysql

Install MySQL and put its /bin directory on your path.

And be sure to use new-style password hashing:

http://dev.mysql.com/doc/refman/5.0/en/old-client.html

development:
adapter: mysql
encoding: utf8
database: library_development
username: root
password: password

This suggests that you have put a password in database.yml, but the
error suggests there is no password. Is there a password in
database.yml?

Have you checked that you can access the database via mysql using root
and whatever password is in this file?

I think that you may need to restart the server if you change
database.yml.

Finally instantrails is very old, unless it has been recently updated.
If you must do development on Windows then I think railsinstaller
is currently recommended. Most would say that it is better to use Mac
or Linux (I use Ubuntu). It is possible to do the development in a
virtual machine such as vmware or virtualbox running Ubuntu on the
windows host if you must use windows.

Colin

In a ‘ruby console’ window you can use the mysql commands. You should
be able to do something like ‘mysql -u root -ppassword
library_development’
If this does not work it means you have a missmatch between the password
and what mysql has as the password.

If that works you might look closely at the database.yml. It is picky
about format and tabs cause problems.

Can you access the database ok using MysqlAdmin?

InstantRails works fine within its limitations. I use it all of the
time for my limited purpose.

Norm

Thanks Norm!
I fixed the error.I used a wrong password in database.yml.
And sorry for delayed response.
Thanks for your response :slight_smile:

Sorry for delayed response,Colin.
Your advice helped and I fixed the error.
Thanks !

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