Q:

Can't make sqlite3 work on Ruby on Rails

I just installed ruby on my windows 7 computer. I installed rails and sqlite3 with the gem. I then made my app work on local BUT I still seem to have problems with sqlite3. When I try this:
rake db:create

the only thing i get is an error:
Please install the sqlite3 adapter: "gem install activerecord-sqlite3-adapter" (sqlite3 
is not part of the bundle. Add it to the GemFile).

I've been doing some digging here and there, and I could make this error go away adding this line to my GemFile:
gem "sqlite3", group: :sqlite3

And i got a new error:
no driver for sqlite3 found

I tried the 'bundle' command and I have both sqlite3 and sqlite3-ruby, I reinstalled everything but the problem won't go away. This is my gemFile, I hope it helps:
source 'https://rubygems.org'

gem 'rails', '3.2.12'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

#I tried this too, but nothig changes
#gem 'sqlite3-ruby', :require => 'sqlite3'

gem 'sqlite3-ruby', '1.2.5', :require => 'sqlite3'
gem "sqlite3", group: :sqlite3

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer', :platforms => :ruby

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'

I really don't know what to do. It's kind of frustrating, it seems like something is not (obviously) properly working with sqlite3, because fixing one error leads to a new error. How can I possibly fix this problem ?

A:

To everybody who's going to have this problem. What I did to fix it was uninstall everything. I though that maybe since I had an updated version of everything, something might not be working properly, maybe some dependencies were wrongly addressed. So I reinstalled everything following this:
Rails Installer Website
Which will make you install everything you need to run your first RoR app. It might not be up to date but it works just fine. Sqlite3 works perfectly now and that was what I needed. I might try to update every single program later, right now I just need something that is actually working. Thanks to everybody else who tried to help.

