PaperClip StorageMethodNotFound (Cannot found filesystem)

Hello ,
           i have an issue with paperclip . when i a working on
windows its works fine when i Go on Fedora Or heroku It gives Error
PaperClip StorageMethodNotFound (Cannot found filesystem) :
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is this works for me

http://github.com/tomafro/paperclip/commit/64ae23ba01885e22cc69bf1264f339784ce32fc9

Please Help......

Thanks in advance.