Ruby on Rails 安装 JSON ubuntu 错误

Question

嘿，我是rails（以及linux）的新手，我不断收到此错误：

Installing json (1.7.5) with native extensions 
Gem::Installer::ExtensionBuildError: 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 /home/jack/.bundler/tmp/10426/gems/json-1.7.5 for inspection.
Results logged to /home/jack/.bundler/tmp/10426/gems/json-1.7.5/ext/json/ext/generator/gem_make.out
An error occurred while installing json (1.7.5), and Bundler cannot continue.
Make sure that `gem install json -v '1.7.5'` succeeds before bundling.
jack@jack-ThinkCentre:~/rails_projects/sample_app$ 

我无法单独安装或捆绑安装宝石。我使用 rvm 来安装导轨。提前谢谢。

Answer 1

安装 ruby1.9.1-dev 软件包应该可以

为您解决此问题

sudo apt-get install ruby1.9.1-dev

Answer 2

"运行 ruby 2.2.3 的 ubuntu-trusty-64 上存在同样的问题。解决方案是安装libgmp3-dev。

sudo apt-get install libgmp3-dev