Ruby gem LoadError - rubygems/defaults/operating_system

Question

Hello, I've installed ruby 1.8.6 p368 and gems 1.3.4 as well as required libraries like zlib, ssl or readline on my winxp sp3 box. The problem is, when I now try to use some gem, I get the following error:

Exception `LoadError' at D:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:1112 - no su
ch file to load -- rubygems/defaults/operating_system
Exception `LoadError' at D:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.
rb:31 - no such file to load -- mysql

Seems like it makes sense to start with fixing the missing "rubygems/defaults/operating_system" file. How can I do that? TIA

PS: gem env is

RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.4
  - RUBY VERSION: 1.8.6 (2009-03-31 patchlevel 368) [i386-mswin32]
  - INSTALLATION DIRECTORY: D:/ruby/lib/ruby/gems/1.8
  - RUBY EXECUTABLE: D:/ruby/bin/ruby.exe
  - EXECUTABLE DIRECTORY: D:/ruby/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-mswin32-60
  - GEM PATHS:
 - D:/ruby/lib/ruby/gems/1.8
 - C:/Documents and Settings/roddik/.gem/ruby/1.8
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://gems.rubyforge.org/

Answer 1

It looks like you need the mysql gem too.

Answer 2

The following error

Exception 'LoadError' at D:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:1112 - no such file to load -- rubygems/defaults/operating_system

Can relate to either

1. a corrupt installation (check the rubygems.rb file and make sure it requires 'rubygems/defaults/operating_system'. If it does, check to see if it exists) or
2. you're trying to run a 2.3.x app while the server is still configured to using Rails 2.1.x

I hope this helps. If not, let me know.

Answer 3

Have you tried InstantRails? It has rails/apache/mysql in a nice package and worked out of the box on every XP box I tried.

I also install NetBeans as dev environment and just point it to InstantRails "bin/ruby" binary.

Answer 4

Were you running using -d? If so, this email reckons that it's displaying exceptions even when they're rescued.