Well, checking deeper, it seems to use mini_magick by default
and only optionally uses rmagick.
This page:
says:
- ImageMagicK. Carrierwave can use either RMagicK or MiniMagicK (default). To change resize option the correct gem must be used (specified in Gemfile) and change included setting for Carrierwave in file_uploader.rb
Looking into that file:
# Include RMagick or ImageScience support
# include CarrierWave::RMagick
# include CarrierWave::ImageScience
include CarrierWave::MiniMagick
Did you change these default settings?
Looking into the Gemfile:
...
# -- Photo resizing
# MiniMagick
gem "mini_magick"
# ImageMagick:
#gem "rmagick", :require => 'RMagick'
# FreeImage:
#gem "RubyInline"
So, probably, if you want to activate rmagick for CarrierWave, you should uncomment
the line with "rmagick" and rerun `bundle install` after that.
But, I would first check why the upload functionality does not work with the
default mini_magick that _is_ most probably installed.
But then again ... this file
resources/DummyHTML/css/joshuaclayton-blueprint-css-05312a805eca539ab85e435cfd94bdedfd12ab2e/lib/blueprint/grid_builder.rb
also tries to require 'rmagick' and install the gem 'rmagick'...
HTH,
Peter