# Configure.gem image\_science doesn't work

**URL:** <https://www.ruby-forum.com/t/configure-gem-image-science-doesnt-work/155940>\
**Category:** Rails\
**Created:** [December 18, 2008, 10:58am UTC](https://www.ruby-forum.com/t/configure-gem-image-science-doesnt-work/155940 "2008-12-18T10:58:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![idahoev](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/b5e925/32.png) [@idahoev](https://www.ruby-forum.com/u/idahoev)\
**Post date:** [December 18, 2008, 10:58am UTC](https://www.ruby-forum.com/t/configure-gem-image-science-doesnt-work/155940/1 "2008-12-18T10:58:36Z")

</div>

I have an app that requires 6 gems at the moment. config.gem works  
fine for most of them, but not for image\_science.

ImageScience is installed correctly, and the code works fine. But if I  
have the line:

> config.gem “image\_science”

in my environment.rb, server (and rake tasks, etc.) all quit with the  
message:

> Missing these required gems:  
> image\_science

image\_science is installed correctly, in the same directory as all the  
other gems, and that directory (/Library/Ruby/Gems/1.8) is correctly  
listed among the directories output by the error message:

> You’re running:  
> ruby 1.8.6.114 at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby  
> rubygems 1.3.1 at /Users/evan/.gem/ruby/1.8, /Library/Ruby/Gems/1.8, /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8

… So I’m at a loss. Why does config.gem think this particular gem is  
not installed?