Paperclip not resizing images or creating style directories

Question

I have paperclip installed and functioning, except that it is only saving the original image, and not any of the resized versions. This is not the issue of the aspect ratio holding over the commanded sizing, about which there are several fixes on Stackoverflow.

I can't figure out where my code is wrong.

model:

has_attached_file :image, styles: { medium: "450x450" },
                            path: ":rails_root/public/system/:attachment/:id/:style/:filename",
                            url: "/system/:attachment/:id/:style/:filename"

migration file:

class AddAttachmentToPhotos < ActiveRecord::Migration
  def change
    add_attachment :photos, :image
  end
end

The directory chain that is created when the first image is uploaded is as follows:

public/system/images/1/original

which is correct except that there should also be a public/system/images/1/medium

What am I doing wrong?

EDIT: I am using ruby 1.9.2, rails 3.2, and paperclip 3.4.1 Is there any other information that would help solve this issue?

Answer 1

From documentation (http://rdoc.info/gems/paperclip/file/README.md#Requirements):

ImageMagick must be installed and Paperclip must have access to it. To ensure that it does, on your command line, run which convert (one of the ImageMagick utilities). This will give you the path where that utility is installed. For example, it might return /usr/local/bin/convert.

Also make sure you have it installed on your deployment machine, not only on your development.

If you have it installed, we would probably need fragment of your logs when you try to attach image to your model, like this from rails console:

model.image = File.open('image.png')
model.save