gemfile 如下，系统是 ubunt 15.x.x

group :development, :test do
  gem 'sqlite3'
end

group :production do
  gem 'pg'
  gem 'rails_12factor'
end

错误日志如下：

remote:        continue.
remote:        Make sure that `gem install sqlite3 -v '1.3.10'` succeeds before bundling.
remote:  !
remote:  !     Failed to install gems via Bundler.
remote:  !     
remote:  !     Detected sqlite3 gem which is not supported on Heroku.
remote:  !     https://devcenter.heroku.com/articles/sqlite3
remote:  !
remote: 
remote:  !     Push rejected, failed to compile Ruby app
remote: 
remote: Verifying deploy...
remote: 
remote: !   Push rejected to powerful-falls-8764.

能帮下嘛..刚入手没几天，好艰难