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ruby-on-railsruby-on-rails-3upgraderails-3-upgrade

after upgrading to rails 3, 'rails server' still just shows usage

I've recently updated a rails 2.3.10 application to rails 3.0.5. I followed the rails-upgrade gem instructions. Running bundle install works fine. I've update the boot.rb application.rb and environment.rb. 

$ bundle install
Using rake (0.8.7) 
...
Using railties (3.0.5) 
Using rails (3.0.5) 
...

However, when I call 'rails server' I still get usage instructions:

$ rails server
Usage:
  rails new APP_PATH [options]

Anyone have any ideas why this is happening? I suspect an error is getting swallowed somewhere from the upgrade procedure, but I'm not sure where to look.

Solution

  • I just figured out a way to fix this, so I thought I'd add the step for everyone else to follow.

    After doing the rails-upgrade steps: 

    rake rails:upgrade:check
rake rails:upgrade:backup

    build a new rails app over the existing one, by doing the following WITHIN the app's directory. 

    rails_2_app $ rails new .

    And then continue the upgrade as normal.