我正在尝试通过cloud9.io运行this application。我不是程序员。尝试了我能理解的一切，但却走到了尽头。我尝试运行该应用程序，但它会抛出一个错误。这是输出：
Digest::Digest is deprecated; use Digest
Auto-loading of `.env.development` will be removed in 1.0. See https://github.com/bkeepers/dotenv-deployment if you would like to continue using this feature.
=> Booting WEBrick
=> Rails 3.2.22 application starting in development on http://0.0.0.0:8080
=> Call with -d to detach
=> Ctrl-C to shutdown server
Connecting to database specified by database.yml
Exiting
/usr/local/rvm/gems/ruby-2.1.3/gems/doorkeeper-2.0.1/lib/doorkeeper/config.rb:29:in `rescue in check_for_missing_columns': uninitialized constant ActiveRecord::NoDatabaseError (NameError)
from /usr/local/rvm/gems/ruby-2.1.3/gems/doorkeeper-2.0.1/lib/doorkeeper/config.rb:21:in `check_for_missing_columns'
from /usr/local/rvm/gems/ruby-2.1.3/gems/doorkeeper-2.0.1/lib/doorkeeper/config.rb:11:in `configure'
from /home/ubuntu/workspace/config/initializers/doorkeeper.rb:6:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/engine.rb:593:in `block (2 levels) in <class:Engine>'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/engine.rb:592:in `each'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/engine.rb:592:in `block in <class:Engine>'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/initializable.rb:30:in `instance_exec'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/initializable.rb:30:in `run'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/initializable.rb:55:in `block in run_initializers'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/initializable.rb:54:in `each'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/initializable.rb:54:in `run_initializers'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/application.rb:136:in `initialize!'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /home/ubuntu/workspace/config/environment.rb:5:in `<top (required)>'
from /home/ubuntu/workspace/config.ru:17:in `block in <main>'
from /usr/local/rvm/gems/ruby-2.1.3/gems/rack-1.4.7/lib/rack/builder.rb:51:in `instance_eval'
from /usr/local/rvm/gems/ruby-2.1.3/gems/rack-1.4.7/lib/rack/builder.rb:51:in `initialize'
from /home/ubuntu/workspace/config.ru:in `new'
from /home/ubuntu/workspace/config.ru:in `<main>'
from /usr/local/rvm/gems/ruby-2.1.3/gems/rack-1.4.7/lib/rack/builder.rb:40:in `eval'
from /usr/local/rvm/gems/ruby-2.1.3/gems/rack-1.4.7/lib/rack/builder.rb:40:in `parse_file'
from /usr/local/rvm/gems/ruby-2.1.3/gems/rack-1.4.7/lib/rack/server.rb:200:in `app'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/commands/server.rb:46:in `app'
from /usr/local/rvm/gems/ruby-2.1.3/gems/rack-1.4.7/lib/rack/server.rb:304:in `wrapped_app'
from /usr/local/rvm/gems/ruby-2.1.3/gems/rack-1.4.7/lib/rack/server.rb:254:in `start'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/commands/server.rb:70:in `start'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/commands.rb:55:in `block in <top (required)>'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/commands.rb:50:in `tap'
from /usr/local/rvm/gems/ruby-2.1.3/gems/railties-3.2.22/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
Process exited with code: 1
[K
Process exited with code: 1
这是database.yml
的内容development:
adapter: postgresql
encoding: utf8
database: bikereg
username: postgres
password: !q2w3e4r5t
pool: 5
test:
adapter: postgresql
database: bikereg_test
staging:
adapter: postgresql
database: bikereg_staging
production:
adapter: postgresql
database: bikereg_production
pool: 25
知道怎么解决吗？