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# gem install rmagick -r
Building native extensions. This could take a while...
Successfully installed rmagick-2.5.1
1 gem installed
# ruby setup.rb
Verifying dependencies...
** Ruby version is not up-to-date; loading cgi_multipart_eof_fix
Please install required Ruby Gems:
sudo gem install rmagick -r
rmagick requires ImageMagick. If you're unable to install ImageMagick 6.3.0+, which the latest
version of rmagick requires, please install version 1.5.14 instead:
sudo gem install rmagick -v 1.5.14 -r
require 'RMagick'
erlends@erlends-desktop:~/src/ruby/cit$ irb
>> require 'RMagick'
irb(main):001:0> require 'RMagick'
LoadError: no such file to load -- RMagick
from (irb):1:in `require'
from (irb):1
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