rails new project error cannot find railties

[candor]

Hi,

I am getting an error while creating a new rails (3.2.3) project on
mac os x lion with rvm (with jewelrybox gui) and ruby v 1.9.3 as
default.

I tried gem install rails, gem install railties, and gem list does
show rails and railties, both version 3.2.3 are present.

> rails new myproject
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
1.8/rubygems.rb:777:in `report_activate_error': Could not find RubyGem
railties (>= 0) (Gem::LoadError)
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/1.8/rubygems.rb:211:in `activate'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
ruby/1.8/rubygems.rb:1056:in `gem'
from /usr/bin/rails:18

I get the same error when I run rails -v.

ruby -v shows 1.9.3, but rails seems to be picking ruby framework
version 1.8 above - is that the problem? If so, how can I get rails to
use ruby 1.9.3 instead?

Thanks
Anand

[candor]

I found the answer here - http://stackoverflow.com/questions/5713872/rails-command-line-not-found-when-installed-with-rvm

I should *not* use sudo while installing rails - that way, rvm manages a separate copy of gems for each version of ruby.