安装pg（0.18.4）时发生错误
[英]an error occurred while installing pg (0.18.4)
问题描述
I'm new to ruby on rails and installing bundle after all required configurations like rvm,ruby,rails etc. But Error on bundle install 
我是Ruby的新手，在所有必需的配置（如rvm，ruby，rails等）之后都安装了bundle。
an error occurred while installing pg (0.18.4), and bundler cannot continue.
with this another problem after this Please suggest me how to update my old rails application to latest rails. 在此之后出现另一个问题，请建议我如何将旧的Rails应用程序更新为最新的Rails。
Please is there any suggestion ??? 请问有什么建议吗？
2 个解决方案
解决方案1
1 2016-09-01 08:10:41
如果您使用的是Ubuntu ，则很可能会丢失隐藏的依赖项
sudo apt-get install libpq-dev
解决方案2
1 已采纳 2016-09-01 08:38:07
You can install missing a hidden dependency by running this command into your terminal. 您可以通过在终端中运行此命令来安装缺少隐藏依赖性的文件。
sudo apt-get install libpq-dev
You can update your old project of rails to the latest one go through the steps mention on this link 您可以通过此链接上提到的步骤将旧的rails项目更新为最新的
http://dev.mensfeld.pl/2015/12/upgrading-to-ruby-on-rails-5-0-from-rails-4-2-application-use-case/ http://dev.mensfeld.pl/2015/12/upgrading-to-ruby-on-rails-5-0-from-rails-4-2-application-use-case/
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