I got this error while working with paperclip. The project was stable and I have no idea why this error happens at this point of time.
[paperclip] An error was received while processing: # [paperclip] An error was received while processing: #<Paperclip::PaperclipError: There was an error processing the thumbnail for paperclip-reprocess20110822-2281-19969sz
So I was lazy to fix the error, and find that I have no imagemagick installed in my new system. After installing ‘imagemagick’ it got fixed.
$ sudo apt-get update $ sudo apt-get install imagemagick --fix-missing