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Editorial Team
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Asked: 2026-06-09T09:24:27+00:00

When I try to start a new rails project, I get stuck. It cry’s

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When I try to start a new rails project, I get stuck. It cry’s for json 1.7.4. I’m on windows.

rails new delete
      create
      create  README.rdoc
.
.
.
         run  bundle install
Fetching source index for https://rubygems.org/
Using rake (0.9.2.2)
Using i18n (0.6.0)
Using multi_json (1.3.6)
Using activesupport (3.2.6)
Using builder (3.0.0)
.
.
.
Using coffee-script (2.2.0)
Using rack-ssl (1.3.2)
Installing json (1.7.4) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension
.
        C:/Programozas/Ruby192/bin/ruby.exe extconf.rb
creating Makefile

make
'make' is not recognized as an internal or external command,
operable program or batch file.


Gem files will remain installed in C:/Programozas/Ruby192/lib/ruby/gems/1.9.1/ge
ms/json-1.7.4 for inspection.
Results logged to C:/Programozas/Ruby192/lib/ruby/gems/1.9.1/gems/json-1.7.4/ext
/json/ext/generator/gem_make.out
An error occured while installing json (1.7.4), and Bundler cannot continue.
Make sure that `gem install json -v '1.7.4'` succeeds before bundling.

It drops the same error for gem install json -v ‘1.7.4’ too.
What should I do?

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1 Answer

  1. Editorial Team

    You need to be running within an environment that has software that can understand make. Your windows environment appears to have no such software.

    It looks like a common way of developing with Rails on Windows is using RubyInstaller. People here on SO with similar problems (after 30seconds of Googling) have fixed issues similar to yours with the DevKit that comes with RubyInstaller, as it provides “… A “sane” environment … with make, gcc, sh and similar *nix build tools installed …”

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