[Rails] Re: ActiveRecord::ConnectionNotEstablished

I changed the gem file and succeeded with the db:create and created the
three databases only for once after that I can't use any of my mysql
database connections not only in ror applications
the message is : Access denied for user 'root'@'localhost' (using
password: YES) (Mysql::AccessDeniedError)
I am using ruby on windows

this is an example of a database connection
ActiveRecord::Base.establish_connection(
:adapter => "mysql",
:host => "127.0.0.1",
:database => "database",
:username => "root",
:password => "*********"
)

regards,

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