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Editorial Team
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Asked: 2026-05-13T07:58:24+00:00

When I upload a photo, my model fails validation, err well even without any

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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 recognized by the 'identify' command. and     
/tmp/stream20100103-13830-ywmerx-0 is not recognized by the 'identify' command.

I’m confident this is not related to ImageMagick because I’ve removed any image processing from the uploading, also I’ve tried uploading different mime types, like .txt files and the such.

Additionally, I found something that may work. A blog post claims that putting the following in my environment (in this case development.rb)

Paperclip.options[:command_path] = "/opt/local/bin"
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1 Answer

  1. Editorial Team

    This is related to ImageMagick. The command_path option needs to point to the location where identify is installed. From the command line, you can determine this with which identify.

    $ which identify
/some/path/to/identify

    Afterwards, set command_path to that path (in config/environments/development.rb):

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