Moving a Rails 3 app

I'm new to Ruby on Rails.

I need to copy a rails application to my own computer via git, which I have done. I then tried rails server on the app, which threw a bunch of dependency complaints which I have fixed.

But now when I run rails server, the server exits and I receive the following error message:

/var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/application/configuration.rb:86:in `read': No such file or directory - /home/d/Desktop/ipr/urj/config/database.yml (Errno::ENOENT)
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/application/configuration.rb:86:in `database_configuration'
    from /var/lib/gems/1.8/gems/activerecord-3.0.0/lib/active_record/railtie.rb:58
    from /var/lib/gems/1.8/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
    from /var/lib/gems/1.8/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
    from /var/lib/gems/1.8/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:43:in `run_load_hooks'
    from /var/lib/gems/1.8/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:42:in `each'
    from /var/lib/gems/1.8/gems/activesupport-3.0.0/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
    from /var/lib/gems/1.8/gems/activerecord-3.0.0/lib/active_record/base.rb:1867
    from /var/lib/gems/1.8/gems/will_paginate-3.0.pre2/lib/will_paginate/finders/active_record.rb:31:in `enable!'
    from /var/lib/gems/1.8/gems/will_paginate-3.0.pre2/lib/will_paginate/railtie.rb:9
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/initializable.rb:25:in `instance_exec'
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/initializable.rb:25:in `run'
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/initializable.rb:50:in `run_initializers'
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/initializable.rb:49:in `each'
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/initializable.rb:49:in `run_initializers'
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/application.rb:134:in `initialize!'
    from /var/li开发者_JAVA技巧b/gems/1.8/gems/railties-3.0.0/lib/rails/application.rb:77:in `send'
    from /var/lib/gems/1.8/gems/railties-3.0.0/lib/rails/application.rb:77:in `method_missing'
    from /home/d/Desktop/ipr/urj/config/environment.rb:5
    from /home/d/Desktop/ipr/urj/config.ru:3:in `require'
    from /home/d/Desktop/ipr/urj/config.ru:3
    from /var/lib/gems/1.8/gems/rack-1.2.1/lib/rack/builder.rb:46:in `instance_eval'
    from /var/lib/gems/1.8/gems/rack-1.2.1/lib/rack/builder.rb:46:in `initialize'
    from /home/d/Desktop/ipr/urj/config.ru:1:in `new'
    from /home/d/Desktop/ipr/urj/config.ru:1

Must I copy the database somehow?

run these commands:

bundle install
rake db:schema:load
rake db:test:prepare

Also, make sure that your database.yml file is included in the git repository. Sometimes, the default keeps this file in .gitignore, since different computers have different database configurations. If it doesn't exist, you might create a new app with rails new test and copy that database.yml file over. After that, you should be all set!