Here's what I've done so far:

sudo apt-get install imagemagick libmagickcore-dev

This did not throw any errors, so I think that ImageMagick is installed fine. Then I tried installing the gem:

sudo gem install rmagick

This resulted in the following error:

ERROR:  Error installing rmagick:
    ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
checking for stdint.h... yes
checking for sys/types.h... yes
checking for wand/MagickWand.h... no

Can't install RMagick 2.13.1. Can't find MagickWand.h.
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:

Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/rmagick-2.13.1 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/rmagick-2.13.1/ext/RMagick/gem_make.out

What do I need to do to install rmagick on Ubuntu 10.04?

  • Perhaps moved to unix.stackexchange?
    – Chris
    Aug 28, 2010 at 14:01

5 Answers 5


I think you also have to install libmagickwand-dev from the ubuntu archive:

sudo apt-get install libmagickwand-dev

This package contains the MagickWand.h file.

  • 1
    Why isn't this automatically included? Dec 3, 2014 at 4:33
sudo apt-get install libmagickwand-dev imagemagick

I did as following step to build from source

> wget ftp://ftp.imagemagick.org/pub/ImageMagick/ImageMagick.tar.gz
> tar -xzvf ImageMagick.tar.gz
> ./configure --prefix=/usr/local --with-x=no --disable-static --with-modules --without-perl --without-magick-plus-plus --with-quantum-depth=8 --disable-openmp
> make
> sudo make install
> sudo /sbin/ldconfig /usr/local
> sudo ln -f /usr/local/bin/Magick-config /usr/bin/Magick-config
> sudo PKG_CONFIG_PATH=/usr/local/lib/pkgconfig/ gem install rmagick


Building native extensions.  This could take a while...
Successfully installed rmagick-2.13.1
1 gem installed
  • This worked for me when building from source. Thanks!
    – Delameko
    Dec 8, 2011 at 14:13

I had a similar problem and came across this post: http://www.question-defense.com/2010/05/18/centos-linux-cant-install-rmagick-2-7-0-cant-find-magick-config

After I installed libmagick9-dev i could install rmagick gem without problem. Hope this helps.

  1. aptitude install imagemagick
  2. aptitude install perlmagick

As per these instructions.

  • 1
    That works fine, wantrapreneur, unless you're working with a team that's using a specific version of Ruby via rvm. For the people using rvm, the list of requirements above should work.
    – user126436
    Apr 3, 2012 at 19:55

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