Rails 3.0.0.beta Install problem: can't find executable rails

Question

I\'m trying to install the rails 3.0.0.beta and I\'m running into this issue:

justins-mac-: justinz$ ruby -v
ruby 1.8.7 (2008-08-11 patchlevel 72) [universal-dar         


        

Answer 1

sudo gem install railties --pre

Answer 2

Try

sudo gem update --system

Since that does nothing, try

sudo gem cleanup

then reinstall.

Answer 3

After upgrading rubygems and cleaning up you need to:

gem install railties --pre