ruby-on-rails - ubuntu 13.04下sudo gem install rails报错

Question

我正在尝试设置 rails

sudo gem install rails

我正在使用 rvm

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-1.7.7 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/json-1.7.7/ext/json/ext/generator/gem_make.out

我目前在使用 ruby​​ 2.0 时遇到很多错误

任何帮助如何解决这个错误。

Answer 1

我遇到了同样的问题，所以我之前为 ruby、rubygems 和 rails 安装了构建依赖项:

sudo apt-get build-dep ruby rubygems rails

.. 然后发出 sudo gem install rails，它成功了。