sudo gem install pg无法正常工作 [英] sudo gem install pg won't work

问题描述

我正在尝试让Rails与PostgreSQL一起使用。显然，我需要做的一件事是 sudo gem install pg 。当我这样做时，我得到以下信息：

I'm trying to get Rails to work with PostgreSQL. Apparently one thing I need to do along the way is sudo gem install pg. When I do that, I get this:

jason@buster:~/projects$ sudo gem install pg
Building native extensions.  This could take a while...
ERROR:  Error installing pg:
        ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb
extconf.rb:2:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:2


Gem files will remain installed in /var/lib/gems/1.8/gems/pg-0.10.0 for inspection.
Results logged to /var/lib/gems/1.8/gems/pg-0.10.0/ext/gem_make.out

我已经搜索过Google，并根据发现的内容尝试了一些方法，但似乎无济于事。有什么建议吗？我在Ubuntu上。

I've Googled and tried a few things based on what I've found but nothing seems to help. Any advice? I'm on Ubuntu.

推荐答案

您需要安装发行版ruby-dev（或devel）软件包，否则您将无法使用能够构建任何ruby C扩展。

You need to install your distro ruby-dev (or devel) package otherwise you won~t be able to build any ruby C extensions.

我不在ubuntu上，但是您的package-manager命令可能有点像这样：

I'm not on ubuntu, but you package-manager command might be somewhat like this:

$ sudo apt-get install ruby-dev build-essential

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