From: Yooakim Date: 2009-04-24T03:55:04+09:00 Subject: "uninitialized constant Nokogiri (NameError)" I'm trying a very simple Ruby program: require 'nokogiri' doc = Nokogiri::XML(File.open("Alla.xml")) Whenever I run this I get "uninitialized constant Nokogiri (NameError)" Nokogiri is installed as far as I know, here's my "gem list" output: c:\dev>gem list *** LOCAL GEMS *** fxri (0.3.7, 0.3.6) fxruby (1.6.19, 1.6.12) hpricot (0.8.1, 0.6) log4r (1.0.5) nokogiri (1.2.3) ptools (1.1.6) rake (0.8.4, 0.7.3) rubygems-update (1.3.2) sources (0.0.1) test-unit (2.0.2) win32-api (1.4.0, 1.0.4) win32-clipboard (0.4.4, 0.4.3) win32-dir (0.3.3, 0.3.2) win32-eventlog (0.5.0, 0.4.6) win32-file (0.6.1, 0.5.4) win32-file-stat (1.3.3, 1.2.7) win32-process (0.6.0, 0.5.3) win32-sapi (0.1.4) win32-sound (0.4.1) windows-api (0.3.0, 0.2.0) windows-pr (1.0.2, 0.7.2) I would be very glad if anyone could help me find out why this doesn't work? I'm a seasoned computer user but new to Ruby... so any pointers are welcome. I'm using Ruby 1.8.6 c:\dev>ruby --version ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32] Cheers, Joakim