title: Rails app using sqlite3 for development won't deploy into heroku
body: <p>I am trying to deploy a rails app that I created using SQLite3. But  after running git push heroku master I keep getting the following error</p>
  
  <pre><code>Initializing repository, done.
  Counting objects: 164, done.
  Delta compression using up to 4 threads.
  Compressing objects: 100% (147/147), done.
  Writing objects: 100% (164/164), 78.88 KiB | 0 bytes/s, done.
  Total 164 (delta 33), reused 0 (delta 0)
  
  -----&gt; Ruby app detected
  -----&gt; Compiling Ruby/Rails
  -----&gt; Using Ruby version: ruby-2.0.0
  -----&gt; Installing dependencies using 1.6.3
         Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
         Fetching gem metadata from https://rubygems.org/.........
         Fetching additional metadata from https://rubygems.org/..
         Installing rake 10.3.2
         Installing i18n 0.6.9
         Installing minitest 5.3.5
         Installing thread_safe 0.3.4
         Installing builder 3.2.2
         Installing erubis 2.7.0
         Installing rack 1.5.2
         Installing mime-types 1.25.1
         Installing polyglot 0.3.5
         Installing json 1.8.1
         Installing arel 5.0.1.20140414130214
         Installing coffee-script-source 1.7.0
         Installing execjs 2.2.0
         Installing thor 0.19.1
         Using bundler 1.6.3
         Installing hike 1.2.3
         Installing multi_json 1.10.1
         Installing sass 3.2.19
         Installing tilt 1.4.1
         Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
         /tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/ruby-2.0.0/bin/ruby extconf.rb
         checking for sqlite3.h... no
         sqlite3.h is missing. Try 'port install sqlite3 +universal',
         'yum install sqlite-devel' or 'apt-get install libsqlite3-dev'
         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=/tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/ruby-2.0.0/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}/
         --enable-local
         --disable-local
         Gem files will remain installed in /tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.9 for inspection.
         Results logged to /tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.9/ext/sqlite3/gem_make.out
         Installing rack-test 0.6.2
         Installing tzinfo 1.2.1
         An error occurred while installing sqlite3 (1.3.9), and Bundler cannot continue.
         Make sure that `gem install sqlite3 -v '1.3.9'` succeeds before bundling.
         Bundler Output: Fetching gem metadata from https://rubygems.org/.........
         Fetching additional metadata from https://rubygems.org/..
         Installing rake 10.3.2
         Installing i18n 0.6.9
         Installing minitest 5.3.5
         Installing thread_safe 0.3.4
         Installing builder 3.2.2
         Installing erubis 2.7.0
         Installing rack 1.5.2
         Installing mime-types 1.25.1
         Installing polyglot 0.3.5
         Installing json 1.8.1
         Installing arel 5.0.1.20140414130214
         Installing coffee-script-source 1.7.0
         Installing execjs 2.2.0
         Installing thor 0.19.1
         Using bundler 1.6.3
         Installing hike 1.2.3
         Installing multi_json 1.10.1
         Installing sass 3.2.19
         Installing tilt 1.4.1
  
         Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
  
         /tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/ruby-2.0.0/bin/ruby extconf.rb
         checking for sqlite3.h... no
         sqlite3.h is missing. Try 'port install sqlite3 +universal',
         'yum install sqlite-devel' or 'apt-get install libsqlite3-dev'
         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=/tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/ruby-2.0.0/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}/
         --enable-local
         --disable-local
  
  
         Gem files will remain installed in /tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.9 for inspection.
         Results logged to /tmp/build_c9d45d78-4c2b-4825-9bd8-b3961ccc175f/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.9/ext/sqlite3/gem_make.out
         Installing rack-test 0.6.2
         Installing tzinfo 1.2.1
         An error occurred while installing sqlite3 (1.3.9), and Bundler cannot continue.
         Make sure that `gem install sqlite3 -v '1.3.9'` succeeds before bundling.
   !
   !     Failed to install gems via Bundler.
   !     
   !     Detected sqlite3 gem which is not supported on Heroku.
   !     https://devcenter.heroku.com/articles/sqlite3
   !
  
   !     Push rejected, failed to compile Ruby app
  
  To git@heroku.com:rocky-dusk-1857.git
   ! [remote rejected] master -&gt; master (pre-receive hook declined)
  error: failed to push some refs to 'git@heroku.com:rocky-dusk-1857.git'
  </code></pre>
  
  <p>This is my gemfile:</p>
  
  <pre><code>source 'https://rubygems.org'
  
  
  # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
  gem 'rails', '4.1.1'
  # Use sqlite3 as the database for Active Record
  group :development do
    gem 'sqlite3', '1.3.8'
    gem 'spring'
  end
  # Use SCSS for stylesheets
  gem 'sass-rails', '~&gt; 4.0.3'
  # Use Uglifier as compressor for JavaScript assets
  gem 'uglifier', '&gt;= 1.3.0'
  # Use CoffeeScript for .js.coffee assets and views
  gem 'coffee-rails', '~&gt; 4.0.0'
  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer',  platforms: :ruby
  
  # Use jquery as the JavaScript library
  gem 'jquery-rails'
  # Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
  gem 'turbolinks'
  # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
  gem 'jbuilder', '~&gt; 2.0'
  # bundle exec rake doc:rails generates the API under doc/api.
  gem 'sdoc', '~&gt; 0.4.0',          group: :doc
  
  group :production do
    gem 'pg'
    gem 'rails_12factor'
  end
  </code></pre>
  
  <p>I deployed all the applications that appeared on the "Rails tutorial" by Michael Hartl with no problem but now I am developing my own apps with slightly newer version of rails and ruby and I am having trouble with this. Any help  will be greatly appreciate it.</p>