ERROR: Failed to build gem native extension - neither scenario on Troubleshooting section worked

[Doug Blumeyer]

Here is my error:

C:\Users\Douglas\Desktop\DouglasBlumeyer.com-master>bundle install

Fetching gem metadata from https://rubygems.org/........

Fetching version metadata from https://rubygems.org/..

Using rake 10.4.2

Using i18n 0.7.0

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension

.

        C:/Ruby21/bin/ruby.exe extconf.rb

creating Makefile

make "DESTDIR="

'make' is not recognized as an internal or external command,

operable program or batch file.

Gem files will remain installed in C:/Ruby21/lib/ruby/gems/2.1.0/gems/json-1.8.2

 for inspection.

Results logged to C:/Ruby21/lib/ruby/gems/2.1.0/gems/json-1.8.2/ext/json/ext/gen

erator/gem_make.out

An error occurred while installing json (1.8.2), and Bundler cannot continue.

Make sure that `gem install json -v '1.8.2'` succeeds before bundling.

And here is my gem environment:

C:\Users\Douglas\Desktop\DouglasBlumeyer.com-master>gem env

RubyGems Environment:

  - RUBYGEMS VERSION: 1.8.29

  - RUBY VERSION: 2.1.6 (2015-04-13 patchlevel 336) [i386-mingw32]

  - INSTALLATION DIRECTORY: C:/Ruby21/lib/ruby/gems/2.1.0

  - RUBY EXECUTABLE: C:/Ruby21/bin/ruby.exe

  - EXECUTABLE DIRECTORY: C:/Ruby21/bin

  - RUBYGEMS PLATFORMS:

    - ruby

    - x86-mingw32

  - GEM PATHS:

     - C:/Ruby21/lib/ruby/gems/2.1.0

     - C:/Users/Douglas/.gem/ruby/2.1.0

  - GEM CONFIGURATION:

     - :update_sources => true

     - :verbose => true

     - :benchmark => false

     - :backtrace => false

     - :bulk_threshold => 1000

  - REMOTE SOURCES:

     - http://rubygems.org/

[Bryan Bibat]

You don't have "make", which means DevKit isn't installed i.e. the first scenario in Troubleshooting's "For some strange reason, it fails to install gems".

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Bryan Bibat
Freelance Software Engineer
http://www.bryanbibat.net

[Justin Baker]

Hey! I'm a little confused.

Have you A} "installed the DevKit and still got this error" or B) "haven't installed it yet and don't know how"?

There is also C) "I missed a step, and am installing it now."

I'm guessing it's C, but your emails were kind of vague.

If you're still having problems and need help, let me know.

Justin

[Dušan D. Majkić]

You probably missed to run these commands

cd C:\devkit
ruby init
edit config.yml (enter here dir to your ruby installation)
ruby install

Or if that for some reason doesn't work, try to run
C:\devkit\devkitvars.bat before bundle install

[Dušan D. Majkić]

> ruby init
> ruby install

Sorry - it should be:

ruby dk.rb init
ruby dk.rb install