checking for ImageMagick version >= 6.4.9... no Can't install RMagick 2.13.4. You must have ImageMagick 6.4.9 or later

Question

I have trouble installing rmagick. I am developing my project using ruby on rails framework. I included rmagick gem in my gemfile. I am getting the following error message:

checking for ImageMagick version >= 6.4.9... no
Can't install RMagick 2.13.4. You must have ImageMagick 6.4.9 or later.

I have installed imagemagick using brew:

 imagemagick-6.8.9-8 already installed

The imagemagick folder is resided in /usr/local/Cellar directory

In my terminal:

Zoulfias-iMac:Myapp zoulfiahall$ rvm use ruby-2.0.0-p481

Using /Users/zoulfiahall/.rvm/gems/ruby-2.0.0-p481
Zoulfias-iMac:Myapp zoulfiahall$ sudo gem install rmagick

Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
ERROR: Failed to build gem native extension.

/Users/zoulfiahall/.rvm/rubies/ruby-2.0.0-p481/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for /usr/bin/clang... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... no
Can't install RMagick 2.13.4. You must have ImageMagick 6.4.9 or later.

*** 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:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/zoulfiahall/.rvm/rubies/ruby-2.0.0-p481/bin/ruby

extconf failed, exit code 1

Gem files will remain installed in /Users/zoulfiahall/.rvm/rubies/
ruby-2.0.0-  p481/lib/ruby/gems/2.0.0/gems/rmagick-2.13.4 for inspection.
Results logged to /Users/zoulfiahall/.rvm/rubies/
ruby-2.0.0-  p481/lib/ruby/gems/2.0.0/extensions/x86_64-darwin-13/
2.0.0-static/rmagick-2.13.4/gem_make.out

Any advice will be appreciated.

Answer 1

This worked for me on ubuntu.

$ sudo apt-get install imagemagick
$ sudo apt-get install libmagickwand-dev

Now try again.

$ bundle install

Answer 2

I had this same issue on macOS when attempting to run gem install rmagick -v 2.13.4

The trick to this is the rmagick installer (gems/rmagick-2.13.4/ext/RMagick/extconf.rb) checks the output of convert to determine the IM version. If that is not returning the correct version (or otherwise completely broken, as was my case), rmagick will not install.

I installed ImageMagick 6 via Homebrew and that fixed my issue. This snippet installs IM, adds it to your path, and runs the installer explicitly pointing to IM6.

$ brew install imagemagick@6
$ echo 'export PATH="/usr/local/opt/imagemagick@6/bin:$PATH"' >> ~/.bash_profile
$ source ~/.bash_profile
$ PKG_CONFIG_PATH=/usr/local/opt/imagemagick@6/lib/pkgconfig gem install rmagick -v 2.13.4

Good luck!

Answer 3

I had the same problem today. What is causing the problem is the fact that rmagick is out of date. And the gem is not being updated regularly. I wanted to present my solution for people who don't mind using older version of imagemagick. ( I believe it is up to 6.5.9-10)

1. Uninstall imagemagick with all the components:

   brew uninstall --force imagemagick

2. Install the older version of imagemagick by adding -ruby186 to the end of the command

   brew install imagemagick-ruby186

3. Install rmagick :)

   gem install rmagick

4. Enjoy!

Answer 4

If do you installed imagemagick with brew install imagemagick@6

Before bundle install, run:

export LDFLAGS="-L/usr/local/opt/imagemagick@6/lib"
export CPPFLAGS="-I/usr/local/opt/imagemagick@6/include"
export PKG_CONFIG_PATH="/usr/local/opt/imagemagick@6/lib/pkgconfig"