ruby-on-rails – Paperclip Heroku S3问题

我跟着 this tutorial在heroku上设置了带有s3的Paperclip.它工作正常！
但现在我搬到了一个新的项目,我试图复制我用第一个步骤使图像上传工作.但我不能,这让我发疯！请帮我解决这个问题……我已经失去了几个小时. ： – /

这就是发生的事情：
我创建了一个选择照片的活动,我认为上传甚至没有开始(它太快了！).没有错误被调用,我活动的“photo”属性是/photos/original/missing.png

这是我的模型文件：

class Activity < ActiveRecord::Base

  has_many :infos,:dependent => :destroy
  has_many :links,:dependent => :destroy
  has_many :events,:dependent => :destroy

  accepts_nested_attributes_for :infos

  has_attached_file :photo,:styles =>{
      :thumb  => "80x60#",:medium => "160x120#",:large => "320x240#",:home => "320x370#"
    },:storage => :s3,:s3_credentials => "#{RAILS_ROOT}/config/s3.yml",:path => ":attachment/activities/:id/:style.:extension",:bucket => 'andrea'

end

我的Gemfile：

source 'http://rubygems.org'

gem 'rails','3.0.5'
gem "paperclip","~> 2.3"
gem 'aws-s3'

# Bundle edge Rails instead:
# gem 'rails',:git => 'git://github.com/rails/rails.git'

gem 'sqlite3'

# Use unicorn as the web server
# gem 'unicorn'

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger (ruby-debug for Ruby 1.8.7+,ruby-debug19 for Ruby 1.9.2+)
# gem 'ruby-debug'
# gem 'ruby-debug19',:require => 'ruby-debug'

# Bundle the extra gems:
# gem 'bj'
# gem 'nokogiri'
# gem 'sqlite3-ruby',:require => 'sqlite3'
# gem 'aws-s3',:require => 'aws/s3'

# Bundle gems for the local environment. Make sure to
# put test-only gems in this group so their generators
# and rake tasks are available in development mode:
# group :development,:test do
#   gem 'webrat'
# end

和我的s3.yml(用完整的键代替“……”)：

development:
  bucket: andrea
  access_key_id: AKIAII...
  secret_access_key: vM977oy6W2TIbArCG9...

test:
  bucket: andrea
  access_key_id: AKIAII...
  secret_access_key: vM977oy6W2TIbArCG9...

production:
  bucket: andrea
  access_key_id: AKIAII...
  secret_access_key: vM977oy6W2TIbArCG9...

这是日志：

WARNING: Can't mass-assign protected attributes: infos_attributes
  [1m[36mAREL (0.3ms)[0m  [1mINSERT INTO "activities" ("photo","created_at","updated_at","home","photo_file_name","photo_content_type","photo_file_size","photo_updated_at","name") VALUES (NULL,'2011-04-20 13:27:57.428869',NULL,NULL)[0m
[paperclip] Saving attachments.
Redirected to http://localhost:3000/activities/15
Completed 302 Found in 45ms


Started GET "/activities/15" for 127.0.0.1 at 2011-04-20 15:27:57 +0200
  Processing by ActivitiesController#show as HTML
  Parameters: {"id"=>"15"}
  [1m[35mActivity Load (0.9ms)[0m  SELECT "activities".* FROM "activities" WHERE "activities"."id" = 15 LIMIT 1
Rendered activities/show.html.erb within layouts/application (13.5ms)
Completed 200 OK in 39ms (Views: 17.2ms | ActiveRecord: 1.2ms)


Started GET "/photos/large/missing.png" for 127.0.0.1 at 2011-04-20 15:27:57 +0200

ActionController::RoutingError (No route matches "/photos/large/missing.png"):

如果您需要更多信息,请告诉我！

哦,我已经尝试过heroku重启,但没有任何改变.

<%= form_for @activity do |f| %>
...
<% end %>

<%= form_for @activity,:html => { :multipart => true } do |f| %>
...
<% end %>