title: rails sqlite adapter error
body: <p>I'm following the instructions in <a href="http://ruby.railstutorial.org/chapters/a-demo-app#sec:demo_users_resource" rel="noreferrer">rails tutorial</a> and got stuck when trying to use the scaffold command.</p>
  
  <p>When running:</p>
  
  <pre><code>rails generate scaffold User name:string email:string  
  </code></pre>
  
  <p>I get the error:</p>
  
  <pre><code>C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/connection_specification.rb:71:in `rescue in establish_connection': Please install the sqlite3 adapter: `gem install activerecord-sqlite3-adapter` (can't activate sqlite3 (~&gt; 1.3.4), already activated sqlite3-1.3.3-x86-mingw32. Make sure all dependencies are added to Gemfile.) (RuntimeError)
  </code></pre>
  
  <p>Running:</p>
  
  <pre><code>gem install activerecord-sqlite3-adapter
  </code></pre>
  
  <p>I got the error:</p>
  
  <pre><code>ERROR:  Could not find a valid gem 'activerecord-sqlite3-adapter' (&gt;= 0) in any repository
  ERROR:  Possible alternatives: activerecord-jdbcsqlite3-adapter, activerecord-sqlserver-adapter, activerecord-nulldb-adapter, activerecord-spatialite-adapter, activerecord-simpledb-adapter
  </code></pre>
  
  <p>My Gemfile looks like this:</p>
  
  <pre><code>source 'http://rubygems.org'
  gem 'rails', '3.1.0'  
  gem 'sqlite3', '1.3.3'  
  ...
  </code></pre>
  
  <p>I'm running on Windows 7 x64 OS.</p>
  
  <p>Any ideas?</p>