Ruby on Rails

I am a newbie on Ruby on Rails. When trying to install on Win 7 32 bit PC, after executing gem install rails, got the following errors:

9 gems installed
error: while generating documentation for actionpack-4.1.4
... MESSAGE:   Invalid argument - ./ActionDispatch/Routing/Mapper/Scoping/:
... RDOC args: --ri --op C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/doc/act
ionpack-4.1.4/ri lib --title actionpack-4.1.4 Documentation --quiet

(Ruby version:  1.9.3p545 (2014-02-24) [i386-mingw32]
SQLite version: 3.8.4.3 2014-04-03 16:53:12

Can someone please help?

Thanks,
rubynewbie

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