http://opalrb.org/docs/rails/のガイドに従っています。最初のステップはうまくいきます:
rails new MyHappyApp --javascript=opal
しかし、実際に足場を生成しようとすると...
rails g scaffold Persion name age:int
/home/jared/.rvm/gems/ruby-2.1.1@rails32/gems/opal-sprockets-0.0.1/lib/opal/sprockets/server.rb:81: warning: already initialized constant Opal::Server::Index::SOURCE
/home/jared/.rvm/gems/ruby-2.1.1@rails32/gems/opal-0.3.44/lib/opal/server.rb:90: warning: previous definition of SOURCE was here
SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
This poses a security threat. It is strongly recommended that you
provide a secret to prevent exploits that may be possible from crafted
cookies. This will not be supported in future versions of Rack, and
future versions will even invalidate your existing user cookies.
Called from: /home/jared/.rvm/gems/ruby-2.1.1@rails32/gems/actionpack-3.2.0/lib/action_dispatch/middleware/session/abstract_store.rb:28:in `initialize'.
invoke active_record
create db/migrate/20140613172929_create_persions.rb
create app/models/persion.rb
invoke test_unit
create test/unit/persion_test.rb
create test/fixtures/persions.yml
route resources :persions
invoke scaffold_controller
create app/controllers/persions_controller.rb
invoke erb
create app/views/persions
create app/views/persions/index.html.erb
create app/views/persions/edit.html.erb
create app/views/persions/show.html.erb
create app/views/persions/new.html.erb
create app/views/persions/_form.html.erb
invoke test_unit
create test/functional/persions_controller_test.rb
invoke helper
create app/helpers/persions_helper.rb
invoke test_unit
create test/unit/helpers/persions_helper_test.rb
invoke assets
error opal [not found]
invoke scss
create app/assets/stylesheets/persions.css.scss
invoke scss
create app/assets/stylesheets/scaffolds.css.scss
「error opal [not found]」という行が表示される理由を知っている人はいますか?