Appdomumsite Having trouble with image uploads. The icon shows up but the multiple nested files are not showing up.

app.rb

class App < ActiveRecord::Base
	attr_accessible :description, :name, :icon, :app_screenshots_attributes
	has_many :app_screenshots, :dependent => :destroy
	belongs_to :user
	accepts_nested_attributes_for :app_screenshots, :reject_if => lambda{ |t| t['app_screenshot'].nil? }, :allow_destroy => true

	validates :name, presence: true
	validates :description, presence: true

	  has_attached_file :icon, :styles =>{ :medium => "300x300>", :thumb => "150x150>" }, :default_url => "/images/:style/missing.png"
	  default_scope order: 'apps.created_at DESC'
end
 

app_screenshot.rb

class AppScreenshot < ActiveRecord::Base
	belongs_to :app

	has_attached_file :image, :styles => { :small => "480x320>", :large => "920x640>"}
	
	validates_attachment_content_type :image, :content_type => ['image/jpeg', 'image/png']
  attr_accessible :caption, :image
end

apps_controller.rb

class AppsController < ApplicationController
before_filter :authenticate_user!

	def index
    @apps = App.all
  end

  def show
    @app = App.find(params[:id])
  end

  def new
    @app = App.new
    4.times { @app.app_screenshots.build }
  end


  def create
		@app = current_user.apps.build(params[:app])

		if @app.save
			flash[:notice] = "App Created"
			redirect_to root_url
		end
	end
  
  def update
    
    @app = App.find(params[:id])

    if @app.update_attributes(params[:app])
      redirect_to apps_path, :notice => "App Updated."
    else
      redirect_to apps_path, :alert => "Unable to update App."
    end
  end
    
  def destroy
	    @app = current_user.apps.find_by_id(params[:id])
	    redirect_to root_url if @app.nil?
	else
		@app.destroy
		redirect_to apps_path
	end
end

gistfile1.txt

Started POST "/apps" for 127.0.0.1 at 2013-04-10 00:38:13 -0700
Processing by AppsController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"CJfQnNIl/e0UEwguNAjZ5bEP3snoO0CxXDjQOB3srQk=", "app"=>{"name"=>"dsafasdf", "description"=>"asdfasdf", "icon"=>#<ActionDispatch::Http::UploadedFile:0x0000000513c158 @original_filename="apple-logo.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"app[icon]\"; filename=\"apple-logo.jpg\"\r\nContent-Type: image/jpeg\r\n", @tempfile=#<Tempfile:/tmp/RackMultipart20130410-7778-1llvrgq>>, "app_screenshots_attributes"=>{"0"=>{"image"=>#<ActionDispatch::Http::UploadedFile:0x000000051438e0 @original_filename="officialLogo200.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"app[app_screenshots_attributes][0][image]\"; filename=\"officialLogo200.jpg\"\r\nContent-Type: image/jpeg\r\n", @tempfile=#<Tempfile:/tmp/RackMultipart20130410-7778-1jymz7d>>}, "1"=>{"image"=>#<ActionDispatch::Http::UploadedFile:0x00000005142cd8 @original_filename="officialLogo-100x197.png", @content_type="image/png", @headers="Content-Disposition: form-data; name=\"app[app_screenshots_attributes][1][image]\"; filename=\"officialLogo-100x197.png\"\r\nContent-Type: image/png\r\n", @tempfile=#<Tempfile:/tmp/RackMultipart20130410-7778-122h461>>}}}, "button"=>""}
  User Load (0.6ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: identify -format %m '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: identify -format %m '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: identify -format %m '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: convert '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]' -auto-orient -resize "300x300>" '/tmp/apple-logo20130410-7778-1eiuwqe20130410-7778-1dvaulo'
Command :: file -b --mime '/tmp/apple-logo20130410-7778-1eiuwqe20130410-7778-1dvaulo'
Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: identify -format %m '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: identify -format %m '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: identify -format %m '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]'
Command :: convert '/tmp/apple-logo20130410-7778-1eiuwqe.jpg[0]' -auto-orient -resize "150x150>" '/tmp/apple-logo20130410-7778-1eiuwqe20130410-7778-1q09w5i'
Command :: file -b --mime '/tmp/apple-logo20130410-7778-1eiuwqe20130410-7778-1q09w5i'
   (0.1ms)  begin transaction
Binary data inserted for `string` type on column `icon_content_type`
  SQL (0.9ms)  INSERT INTO "apps" ("created_at", "description", "icon_content_type", "icon_file_name", "icon_file_size", "icon_updated_at", "name", "updated_at", "user_id") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)  [["created_at", Wed, 10 Apr 2013 07:38:14 UTC +00:00], ["description", "asdfasdf"], ["icon_content_type", "image/jpeg"], ["icon_file_name", "apple-logo.jpg"], ["icon_file_size", 57753], ["icon_updated_at", Wed, 10 Apr 2013 07:38:13 UTC +00:00], ["name", "dsafasdf"], ["updated_at", Wed, 10 Apr 2013 07:38:14 UTC +00:00], ["user_id", 1]]
[paperclip] Saving attachments.
   (151.7ms)  commit transaction
Redirected to http://localhost:3000/
Completed 302 Found in 605ms (ActiveRecord: 153.2ms)

new.html.erb

<h2>Create New App</h2>

<%= semantic_form_for @app, :html => { :multipart => true } do |f| %>

    <%= f.input :name, :as => :string %>
    <%= f.input :description, :as => :text %>
    <%= f.input :icon, :as => :file, :matching => "paperclip" %>
    
    <%= f.semantic_fields_for :app_screenshots do |builder| %>

    	<% if builder.object.new_record? %>
    		<%= builder.input :image, :as => :file, :matching => "paperclip" %>
    		<% end %>
    <% end %>

    <%= f.action :submit, :as => :button %>
<% end %>