ruby-on-rails - 当我推送 Heroku 时，Sqlite3 出现问题

Question

我在将 Rails 应用程序推送到 heroku 时遇到了一些问题。

我有错误

Failed to install gems via Bundler. remote: ! Detected sqlite3 gem which is not supported on Heroku: remote: ! https://devcenter.heroku.com/articles/sqlite3

所以我确实按照链接上的说明进行操作，但是，我仍然遇到同样的错误。我试着看看其他类似的主题，但仍然没有用..

有什么想法吗？

更新这是我的 gemfile 的样子:

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
  # Adds support for Capybara system testing and selenium driver
  gem 'capybara', '~> 2.13'
  gem 'selenium-webdriver'
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '>= 3.0.5', '< 3.2'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
  gem 'sqlite3'
end

group :production do
  gem 'pg'
end

Answer 1

While easy to use, SQLite is not intended as a production grade database. Instead Heroku provides production grade PostgreSQL databases as a service.

不要在 heroku 上使用 sqlite - 确保你没有 sqlite3全局范围内的 gem 或 :production你的群Gemfile .