So far I'm disappointed with what I see as red flags. I follow along what seems like foolproof instructions. I install everything, rails new /some/new/app cd to the directory and rails server and my worst fears cryptic useless stack trace...so I copy the top line, search for stuff on this sqllite3 adaptor to fix it, I type the gem install command it mentions (gem install activerecord-sqllite3-adaptor) I copy and paste that so it's no typo and I get ERROR not found (really, ruby on rails prides self on coming with all dependencies? ya right and if it's too slow on top of that, I might as well go to VS2012 on Windows 8 Metro and RIA services or eclipse and EJB 2.0 for masochistic fun)
ERROR: Could not find a valid gem 'activerecord-sqlite3-adapter' (>= 0) in any repository ERROR: Possible alternatives: activerecord-jdbcsqlite3-adapter, activerecord-sqlserver-adapter, activerecord-nulldb-adapter, activerecord-simpledb-adapter, activerecord-dbslayer-adapter
and as I'm hoping to get to a point where I can see a continuation of the tutorial with a toy app, I'm about ready to throw up my hands in despair thinking this is just a sign of more to come here.:
You might want to paste back the result of your initial rails new whatever, specifically the output after the bundle install command runs. You should see a long list of all of the gems that were installed after that step. Any errors at that stage?
Also, have you tried this on Ruby 1.9.3? I am not aware of any mis-match between Rails 3.2 and Ruby 2.0, but on Windows 64-bit, you might be jumping over one too many poodles here.
I don't use or recommend Windows, so I am only going on hear-say here. I do know from years on this list that one of the first recommendations you will hear is "try it in a VM, running some flavor of Linux".
Most of the developers I know use Macs, and those who don't, use Linux. You will find that the support here runs along those lines as well, simply because that's what the fat part of the bell curve use, and therefore understand and can help you with.
Walter