From: Sundhari Bala Date: 2012-01-01T00:30:43+09:00 Subject: Problem in Installing facebook_oauth GEM in Windows Hi , I am using ruby 1.8.6 and rails 2.3.5 in windows.. I have to install facebook_oauth gem, but i got below the error: C:\Documents and Settings\Administrator>gem install facebook_oauth -v=0.3.0 Temporarily enhancing PATH to include DevKit... Building native extensions. This could take a while... ERROR: Error installing facebook_oauth: ERROR: Failed to build gem native extension. c:/ruby/bin/ruby.exe extconf.rb creating Makefile nmake 'nmake' is not recognized as an internal or external command, operable program or batch file. Gem files will remain installed in c:/ruby/lib/ruby/gems/1.8/gems/json-1.6.4 for inspection. Results logged to c:/ruby/lib/ruby/gems/1.8/gems/json-1.6.4/ext/json/ext/parser/ gem_make.out C:\Documents and Settings\Administrator> Kindly some one know the issues reply me... Thanks, B.Sundhari -- Posted via http://www.ruby-forum.com/.