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Comment by notsosmart | Hacker News Reader

I'm just learning ROR from an online tutorial (http://railstutorial.org/), and I wish I had this last week. For newbies like myself, I think installing the framework is sometimes such a big hurdle, it pushes one to give up early. Which is unfortunate, because I read the real challenges happen a few weeks in.

I had a weird issue where I had to reinstall xcode from the OS X DVD. Took a bit of Googling to figure that one out.

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If you're on a mac, you already have rails and ruby 1.8.6 (osx 10.5) or 1.8.7 (osx 10.6).

Just sudo gem update to get the latest version and you're good to go.

ruby 1.8.7 is required for Rails 3; so Leopard/10.5 users need to install ruby 1.8.7 manually to get started as if they didn't have ruby installed at all, I think.

Good point. I've been on 1.9 for so long I'd forgotten about the 1.8.7 requirement for Rails 3.

Actually ruby 1.8.7 is required to install ruby 1.9.2. Rails doesn't need 1.8.7 and works fine with just ruby 1.9.2 installed.

  ruby - Ruby itself is prerequisite in order to build Ruby 1.9. It can be 1.8.

source: http://redmine.ruby-lang.org/wiki/ruby/DeveloperHowto#label-...

If you install via RVM, you don't need a system ruby or anything else installed for bootstrapping.

http://rvm.beginrescueend.com/rvm/install/

http://rvm.beginrescueend.com/deployment/system-wide/

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