Ubuntu - cannot install RMagick [duplicate]

Question

How to install the RMagick gem to Ubuntu? I found a few threads here on SO, some of there directly pointed out to the installation on Ubuntu systems, but none of them is working for me.

Here is the output that I got if I run sudo gem install rmagick

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

        /opt/bitnami/ruby/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... yes

Warning: Found more than one ImageMagick installation. This could cause problems at runtime.
         /opt/bitnami/common/bin/Magick-config reports version 6.7.5 Q16 is installed in /opt/bitnami/common
         /usr/bin/Magick-config reports version 6.6.9 Q16 is installed in /usr
Using 6.7.5 Q16 from /opt/bitnami/common.

checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
checking for stdint.h... yes
checking for sys/types.h... yes
checking for wand/MagickWand.h... no

Can't install RMagick 2.13.2. 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:
    --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=/opt/bitnami/ruby/bin/ruby


Gem files will remain installed in /opt/bitnami/ruby/lib/ruby/gems/1.9.1/gems/rmagick-2.13.2 for inspection.
Results logged to /opt/bitnami/ruby/lib/ruby/gems/1.9.1/gems/rmagick-2.13.2/ext/RMagick/gem_make.out

It's on Amazon EC2 servers. If I try to run just gem install rmagick, I get

ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions into the /opt/bitnami/ruby/lib/ruby/gems/1.9.1 directory.

Could you help me, please, how to fix this issue?

Thank you very much

EDIT: What I've tried:

1. sudo apt-get install libmagickwand-dev

   Reading package lists... Done
   Building dependency tree
   Reading state information... Done
   libmagickwand-dev is already the newest version.
   The following packages were automatically installed and are no longer required:
     libgraphicsmagick3 libmagick++4 libgraphicsmagick++3 libgraphicsmagick1-dev
     libgraphics-magick-perl libperl5.14 libgraphicsmagick++1-dev
   Use 'apt-get autoremove' to remove them.
   0 upgraded, 0 newly installed, 0 to remove and 40 not upgraded.
   

2. sudo apt-get install libmagickwand-dev imagemagick

   Reading package lists... Done Building dependency tree Reading state information... Done imagemagick is already the newest version. libmagickwand-dev is already the newest version. The following packages were automatically installed and are no longer required: libgraphicsmagick3 libmagick++4 libgraphicsmagick++3 libgraphicsmagick1-dev libgraphics-magick-perl libperl5.14 libgraphicsmagick++1-dev Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 40 not upgraded.

3. apt-get install libmagickwand-dev

   E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied) E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

4. sudo apt-get install libmagickwand-dev

   Reading package lists... Done Building dependency tree Reading state information... Done libmagickwand-dev is already the newest version. The following packages were automatically installed and are no longer required: libgraphicsmagick3 libmagick++4 libgraphicsmagick++3 libgraphicsmagick1-dev libgraphics-magick-perl libperl5.14 libgraphicsmagick++1-dev Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 40 not upgraded.

But still the same error message above.

Answer 1

Looking at the error output, you're missing one of the dependencies for rmagick. Try

sudo apt-get install libmagickwand-dev

and then try

gem install rmagick

The second problem is probably due to permission issues. More info on what steps you took would be helpful for us to provide you with better answers.