Warning with fog and AWS: unable to load the 'unf' gem

ruby-on-rails ruby amazon-web-services fog
Arnlen picture Arnlen · Oct 29, 2013 · Viewed 10.6k times · Source

Every action in a rails console (rails server, rails console, db:migrate, etc.) raises a warning since my last bundle update:

[fog][WARNING] Unable to load the 'unf' gem. Your AWS strings may not be properly encoded.

I'm sure I didn't change anything in the AWS strings which are in my application.rb file:

    # Amazon S3 credentials
ENV["AWS_ACCESS_KEY_ID"] = "AWS_ACCESS_KEY_ID"
ENV["AWS_SECRET_ACCESS_KEY"] = "AWS_SECRET_ACCESS_KEY"
ENV["AWS_S3_BUCKET"] = "my-bucket"

I don't have this "unf" gem in my gemfile. Should I add it?

Answer

trh picture trh · Oct 29, 2013

Yes, this just happened a few days ago. You can see from the pull request and commit that the unf dependency is optional.

https://github.com/fog/fog/pull/2320/commits

When I updated my current bundle with fog I received the same warnings, and adding 

gem 'unf'

does indeed remove the warning without any issues.

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