Deploy ROR to heroku fails due to sqlite3 fails - ruby-on-rails-3

Question

I've try the method from others post, but still cannot solve it.
I push my file to heroku but it have some error to the sqlite3.
After I install it, it still didn't work.
Below is my code
Counting objects: 82, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (70/70), done.
Writing objects: 100% (82/82), 3.00 MiB | 238 KiB/s, done.
Total 82 (delta 4), reused 0 (delta 0)
-----> Removing .DS_Store files
-----> Ruby/Rails app detected
-----> Installing dependencies using Bundler version 1.3.2
Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin --deployment
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/..
Installing rake (10.0.4)
Installing i18n (0.6.4)
Installing multi_json (1.7.3)
Installing activesupport (3.2.11)
Installing builder (3.0.4)
Installing activemodel (3.2.11)
Installing erubis (2.7.0)
Installing journey (1.0.4)
Installing rack (1.4.5)
Installing rack-cache (1.2)
Installing rack-test (0.6.2)
Installing hike (1.2.2)
Installing tilt (1.4.1)
Installing sprockets (2.2.2)
Installing actionpack (3.2.11)
Installing mime-types (1.23)
Installing polyglot (0.3.3)
Installing treetop (1.4.12)
Installing mail (2.4.4)
Installing actionmailer (3.2.11)
Installing arel (3.0.2)
Installing tzinfo (0.3.37)
Installing activerecord (3.2.11)
Installing activeresource (3.2.11)
Installing coffee-script-source (1.6.2)
Installing execjs (1.4.0)
Installing coffee-script (2.2.0)
Installing rack-ssl (1.3.3)
Installing json (1.8.0)
Installing rdoc (3.12.2)
Installing thor (0.18.1)
Installing railties (3.2.11)
Installing coffee-rails (3.2.2)
Installing jquery-rails (2.2.1)
Using bundler (1.3.2)
Installing rails (3.2.11)
Installing sass (3.2.9)
Installing sass-rails (3.2.6)
Installing sqlite3 (1.3.7)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/usr/local/bin/ruby extconf.rb
checking for sqlite3.h... no
sqlite3.h is missing. Try 'port install sqlite3 +universal'
or 'yum install sqlite-devel' and check your shared library search path (the
location where your sqlite3 shared library is located).
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
Gem files will remain installed in /tmp/build_2ghtqnawaxqqm/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.7 for inspection.
Results logged to /tmp/build_2ghtqnawaxqqm/vendor/bundle/ruby/1.9.1/gems/sqlite3-1.3.7/ext/sqlite3/gem_make.out
An error occurred while installing sqlite3 (1.3.7), and Bundler cannot continue.
Make sure that `gem install sqlite3 -v '1.3.7'` succeeds before bundling.
!
! Failed to install gems via Bundler.
!
! Heroku push rejected, failed to compile Ruby/rails app
To git#heroku.com:peaceful-reef-2102.git
! [remote rejected] master -> master (pre-receive hook declined)
And this is my gemfile:
source 'https://rubygems.org'
gem 'rails', '3.2.11'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem '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'
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'debugger'
I don't know what happen, please help me!

Answer 1

Heroku doesn't support sqlite, you need to add pg gem (postgres) and remove sqlite gem