An error occurred while installing sqlite3 (1.3.8),and Bundler cannot continue.
   Make sure that `gem install sqlite3 -v '1.3.8'` 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

这是我的gemfile的样子：

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

group :production do
  gem 'pg'
end

关于如何解决这个问题的任何想法？任何帮助深表感谢！