"Rmagick" Gem Installation Issue

Error occurred while installing rmagick

Try this:

apt-get install libmagickwand-dev
gem install rmagick

Installing RMagick Gem

use rvm to install ruby (preferred) or use apt-get install ruby ruby-dev

aptitude install build-essential imagemagick libmagickcore-dev libmagickwand-dev
gem install rmagick

--Edit 1--

sudo apt-get install ruby-dev

You will also need ruby-dev (or ruby-full) for successfully compiling the RMagick before gem install.

How to install rmagick gem on Windows?

RMagic won't work with ImageMagic 6.8. I updated the RMagick Github wiki with detailed instructions.

https://github.com/rmagick/rmagick/wiki

There I found gems (haha) such as

If ImageMagick isn't first in your system path, you'll get an "Invalid
drive specification" error when extconf.rb tries to identify the
ImageMagick version.

and

gem install rmagick -- '--with-opt-dir="[path to ImageMagick]"'

(Obvious, huh?)

I believe RMagick is a dead project. There hasn't been a commit for 2 years!

ImageMagick : ERROR: Failed to build gem native extension

OK GUYS I MANAGED TO INSTALL IT.

Please follow this guide.

Step 1: Download and install this

 ImageMagick-6.9.8-3-Q16-HDRI-x64-dl

Step 2: Set and create a new Environment variable called CLASSPATH and the value set it to

.;C:\ImageMagick-6.9.8-Q16-HDRI\include;lib C:\ImageMagick-6.9.8-Q16-HDRI\lib

Step 3: gem install it

 gem install rmagick  --platform=ruby -- --with-opt-lib=C:\ImageMagick-6.9.8-Q16-HDRI\lib --with-opt-include=C:\ImageMagick-6.9.8-Q16-HDRI\include

IMPORTANT TAKE NOTE!!!

when you download and install ImageMagick make sure you type the version number exactly when setting your path and gem install.

Example like ImageMagic-6.9.8-3-Q16-HDRI, follow exactly.

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