Failed to build gem native extension - extconf.rb not found

Question

Hi, When trying to install

'bcrypt-ruby', :lib => 'bcrypt'

and

'hpricot'

I get this in both cases (Using Windows XP)

C:/Ruby/bin/ruby.exe: No such file or directory -- extconf.rb (LoadError)

I installed from here http://rubyinstaller.org/downloads/ Rb 1.8.6, including the devkit

any hints?, thanks

Answer 1

Hmm, my RubyInstaller + DevKit installation worked fine on the first try. So a couple ideas:

1.) Did you start Gem from the shortcut entitled "Start Command Prompt with Ruby"? (This will ensure that the correct paths and such are included.)

2.) Are you sure that the DevKit is installed correctly? Both of those gems do include the extconf.rb file, but Gem will still choke if the expected development tools are not immediately available.

(...Otherwise, the RubyInstall mailing list might be the best place to seek help for this--or the gem's author, but it appears that he doesn't "do" Windows.)