ruby-on-rails – sudo gem install pg将无法正常工作

我试图让Rails与Postgresql一起工作.显然我需要做的一件事是sudo gem install pg.当我这样做,我得到这个：

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Googled,并尝试了几件事情,基于我发现,但没有什么似乎有帮助.任何建议？我在Ubuntu

解决方法

您需要安装您的发行版ruby-dev(或devel)软件包,否则您将无法构建任何ruby C扩展.

我不是在ubuntu,但是你的package-manager命令可能有点像这样：

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