Redmine

Hello All,
I have installed redmine on Ubuntu 10.4LTS. The following are the version details
Redmine-1.4.2
Ruby-1.8.7
Rails-2.3.14.
I have installed mongrel. When I trying to login, it is displaying me the following error:-

undefined local variable or method `salt' for #<User:0xb5624b4c>
RAILS_ROOT: /var/www/redmine

Application Trace | Framework Trace | Full Trace
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.14/lib/active_record/attribute_methods.rb:260:in `method_missing'
/var/www/redmine/app/models/user.rb:244:in `check_password?'
/var/www/redmine/app/models/user.rb:144:in `try_to_login'
/var/www/redmine/app/controllers/account_controller.rb:143:in `password_authentication'
/var/www/redmine/app/controllers/account_controller.rb:138:in `authenticate_user'
/var/www/redmine/app/controllers/account_controller.rb:30:in `login'
Request

Parameters:

{"password"=>"admin",
"authenticity_token"=>"9EqEHbvAC7ly+aIwbdmV5dJ7Ns+uJUUPmBox3aMhBg4=",
"login"=>"Login \302\273",
"username"=>"admin"}
Show session dump

Response

Headers:

{"Content-Type"=>"",
"Cache-Control"=>"no-cache"}

When I try to run the command

sudo rake generate_session_store
sudo RAILS_ENV=production rake db:migrate
sudo RAILS_ENV=production rake redmine:load_default_data
I get the following error:-
redmine is not in the sudoers file. This incident will be reported.
redmine@redmine-server:/var/www/redmine$ rake generate_session_store
/usr/lib/ruby/gems/1.8/gems/bundler-1.1.5/lib/bundler/runtime.rb:213: warning: I nsecure world writable dir /usr/lib/ruby/gems/1.8 in PATH, mode 040777
Please install RDoc 2.4.2+ to generate documentation.
redmine@redmine-server:/var/www/redmine$ RAILS_ENV=production rake db:migrate /usr/lib/ruby/gems/1.8/gems/bundler-1.1.5/lib/bundler/runtime.rb:213: warning: I nsecure world writable dir /usr/lib/ruby/gems/1.8 in PATH, mode 040777
Please install RDoc 2.4.2+ to generate documentation.
AddWorkflowsAssigneeAndAuthor: migrating ================================
-- add_column(:workflows, :assignee, :boolean, {:null=>false, :default=>false})
rake aborted!
An error has occurred, all later migrations canceled:

Mysql::Error: Duplicate column name 'assignee': ALTER TABLE `workflows` ADD `ass ignee` tinyint(1) DEFAULT 0 NOT NULL

Tasks: TOP => db:migrate
(See full trace by running task with --trace)
redmine@redmine-server:/var/www/redmine$ RAILS_ENV=production rake redmine:load_ default_data
/usr/lib/ruby/gems/1.8/gems/bundler-1.1.5/lib/bundler/runtime.rb:213: warning: I nsecure world writable dir /usr/lib/ruby/gems/1.8 in PATH, mode 040777
Please install RDoc 2.4.2+ to generate documentation.

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Error: unknown attribute: issues_visibility
Default configuration data was not loaded.

I have added the patches attached. Still its displaying the error.
I do request you to provide your inputs inorder to resolve the issue.

Thanks,
SR