Rails / sqlite3 部署到 heroku postgresql 时出错——已经更新了 gemfile 和 master

Question

我第一次使用 SQLite3 从本地 Rails 环境部署到使用 postgresql 的 Heroku。我已经更新了我的 gemfile 以制定适当的开发/生产组条款。我确保将这些更改包含在主文件中。但是，当我运行 db:push 时，我反复收到以下错误

非常感谢您的帮助

prompt> C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/site_ruby/1.9.1/rubygems/custo
m_require.rb:36:in `require': LoadError: cannot load such file -- sqlite3 (Seque
l::AdapterNotFound)
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/site_ruby/1.9.1/r
ubygems/custom_require.rb:36:in `require'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/adapters/sqlite.rb:1:in `<top (required)>'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/site_ruby/1.9.1/r
ubygems/custom_require.rb:36:in `require'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/site_ruby/1.9.1/r
ubygems/custom_require.rb:36:in `require'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/core.rb:249:in `block in tsk_require'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/core.rb:72:in `block in check_requiring_thread'
        from <internal:prelude>:10:in `synchronize'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/core.rb:69:in `check_requiring_thread'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/core.rb:249:in `tsk_require'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/database/connecting.rb:25:in `adapter_class'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/database/connecting.rb:54:in `connect'
        from C:/Program Files (x86)/Heroku/ruby-1.9.2/lib/ruby/gems/1.9.1/gems/s
equel-3.20.0/lib/sequel/core.rb:119:in `connect'
        from C:/Program Files (x86)/Heroku/vendor/gems/taps-0.3.23/lib/taps/sche
ma.rb:17:in `dump_table'
        from C:/Program Files (x86)/Heroku/vendor/gems/taps-0.3.23/bin/schema:32
:in `<main>'

Answer 1

要使heroku db:push 命令正常工作，您需要在与其捆绑的Ruby Heroku 版本中同时安装taps 和sqlite3 gems。

从上面的回溯，似乎taps 已安装，但缺少sqlite3 适配器。

要安装它，请尝试以下操作：

• 启动提升的命令提示符（这样您就可以毫无问题地写入Program Files
• cd "C:\Program Files (x86)\Heroku\ruby-1.9.2\bin" 目录。
• 调用gem install sqlite3 --no-ri --no-rdoc

这应该会安装缺少的 gem 并允许 heroku db:push 使用您的 sqlite3 数据库。

希望对您有所帮助。