From: Manimaran Malaichamy <lists@...>
Date: 2012-04-03T21:56:18+09:00
Subject: Re: Problem Installing Rails on Ruby 1.9.3

I too faced the same issue. I have installed the Ruby 1.9.3.
When i tried to create a new rails application, it throws the following
error.

Installing json (1.6.6) with native extensions The system cannot find
the path specified.
C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:551:in `rescue
in block in build_extensions': ERROR: Failed to build gem native
extension. (Gem::Installer::ExtensionBuildError)

        C:/Ruby192/bin/ruby.exe extconf.rb
creating Makefile


Gem files will remain installed in
C:/Ruby192/lib/ruby/gems/1.9.1/gems/json-1.6.
6 for inspection.
Results logged to
C:/Ruby192/lib/ruby/gems/1.9.1/gems/json-1.6.6/ext/json/ext/ge
nerator/gem_make.out
        from
C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:529:in `b
lock in build_extensions'
        from
C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:504:in `e
ach'
        from
C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:504:in `b
uild_extensions'
        from
C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:180:in `i
nstall'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/sour
ce.rb:101:in `block in install'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/ruby
gems_integration.rb:78:in `preserve_paths'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/sour
ce.rb:91:in `install'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/inst
aller.rb:58:in `block (2 levels) in run'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/ruby
gems_integration.rb:93:in `with_build_args'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/inst
aller.rb:57:in `block in run'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/spec
_set.rb:12:in `block in each'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/spec
_set.rb:12:in `each'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/spec
_set.rb:12:in `each'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/inst
aller.rb:49:in `run'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/inst
aller.rb:8:in `install'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/cli.
rb:222:in `install'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/vend
or/thor/task.rb:22:in `run'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/vend
or/thor/invocation.rb:118:in `invoke_task'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/vend
or/thor.rb:246:in `dispatch'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/lib/bundler/vend
or/thor/base.rb:389:in `start'
        from
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.15/bin/bundle:13:in
 `<top (required)>'
        from C:/Ruby192/bin/bundle:19:in `load'
        from C:/Ruby192/bin/bundle:19:in `<main>'

After i searched in Google i found that, there is some issue(
https://github.com/carlhuda/bundler/issues/1809) with json 1.6.6.
So i update the gem file with, gem 'json', '1.6.5' and i am able to
solve this error.

Hopefully this will help you to solve this problem.
You just try to install the json 1.6.5 seperately and this problem will
get solved.

Thanks,
Mani

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