Ruby on Rails

On Wed, Jan 2, 2013 at 4:06 PM, Doug Royer <douglasroyer@gmail.com> wrote:
> Very new to Ruby/Rails, followed the download/install instructions, until
> this step:
>
>> gem install rails
>
> Building native extensions. This could take a while...
> ERROR: Error installing rails:
> ERROR: Failed to build gem native extension.
>
> /usr/bin/ruby1.9.1 extconf.rb
> /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require':
> cannot load such file -- mkmf (LoadError)
> from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
> `require'
> from extconf.rb:1:in `<main>'
>
>
> Gem files will remain installed in /usr/lib/ruby/gems/1.9.1/gems/json-1.7.6
> for inspection.
> Results logged to
> /usr/lib/ruby/gems/1.9.1/gems/json-1.7.6/ext/json/ext/generator/gem_make.out

Based on your paths I'm going to assume you are on debian-ruby so
install ruby1.9.1-dev then try again.

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