lib/tasks/paperclip.rake throws errors when running any task due to what I'm guessing is a method name collision.
I kept getting the error:
wrong number of arguments (1 for 0)
when i changed the method names (adding a 'p_' to the beginning of both 'obtain_class' and 'obtain_attachment') they were referenced and called correctly.
I can see why that might be the case. Do you mind opening up a pull request to put them in a module?
Put the helper methods into Paperclip::Task module
I've fixed this. Thank you for reporting in.