rails paperclip and passenger `is not recognized by the 'identify' command`

Question

When I upload a photo, my model fails validation, err well even without any validations I\'m returned this error:

/tmp/stream20100103-13830-ywmerx-0 is not r         


        

Answer 1

Usually it helps to specify the path to the identify command with..

Paperclip.options[:command_path] = "/your/path/to/identify"

..as the others mentioned. But the problem can also occur if there is a version mismatch, I recently updated the Ruby-on-Rails Version of an application (to Rails 3.1.10), but forgot to update the paperclip gem. After I updated the paperclip version to 2.8.0 it worked again.