This should be a simple thing to do, but I'm running into a wall and I'm not sure how to debug this response.

In my Image model, I have:

class Image < ActiveRecord::Base
  has_attached_file :image, :styles => {  :display => "500x500>",
                                          :thumbnail => "95x95>"}

Then in my Views, my form contains this:

-form_for @image, :html => { :multipart => true } do |image|
    %tr
      %td.woc_left
        =label_tag :image, 'photo to upload', :class => 'required'
      %td.woc_center
        =image.file_field :image

In my Mysql table, I have a column called "image_file_name" (string).

However, when I try to upload an image and submit it, I see

2 errors prohibited this from being saved
There were problems with the following fields:
Image Paperclip::CommandNotFoundError
Image Paperclip::CommandNotFoundError

What am I doing wrong? Thank you for your help!