无法构建 gem 本机扩展 (mkmf (LoadError)) - Ubuntu 12.04 [英] Failed to build gem native extension (mkmf (LoadError)) - Ubuntu 12.04

问题描述

嘿，我正在尝试在新的 ubuntu 机器上安装 rails.我安装了 ruby​​ 和 rvm，但出现无法构建 gem 本机扩展"错误.这是什么意思?

Hey I'm trying to install rails on a new ubuntu machine. I have ruby and rvm installed but I'm getting a "failed to build gem native extension" error. What does this mean?

$ sudo gem install rails -v 3.2.9

(没有 sudo 表示我没有权限)

(without the sudo says I don't have permissions)

然后它会输出很多获取"命令并最终出现这个错误:

Then it outputs a lot of 'fetching' commands and ultimately this error:

    Building native extensions.  This could take a while...
    ERROR:  Error installing rails:
        ERROR: Failed to build gem native extension.

            /usr/bin/ruby1.9.1 extconf.rb
    /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError)
        from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
        from extconf.rb:1:in `<main>'


    Gem files will remain installed in /var/lib/gems/1.9.1/gems/json-1.8.0 for inspection.
    Results logged to /var/lib/gems/1.9.1/gems/json-1.8.0/ext/json/ext/generator/gem_make.out

当我打字时

$rails server

它说当前没有安装 rails

It says rails is not currently installed

推荐答案

可能重复:

无法安装 gem - 无法构建 gem 本机扩展 - 无法加载此类文件 - mkmf (LoadError)

根据您的 ruby​​ 版本，运行:

sudo apt-get install ruby1.9.1-dev

这篇关于无法构建 gem 本机扩展 (mkmf (LoadError)) - Ubuntu 12.04的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！