ruby-on-rails – 检测到Heroku不支持的sqlite3 gem

我试图将我的rails应用程序推送到Heroku,并且我不断收到以下错误：

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.
!     @R_450_10107@s://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！

group :development,:test do # <<<< :development,not devlopment
  gem 'sqlite3'
end