ruby on rails安装JSON ubuntu错误

问题描述

 安装json（1.7） .5）与本机扩展
 Gem :: Installer :: ExtensionBuildError：错误：无法构建gem本机扩展。 
 
 /usr/bin/ruby1.9.1 extconf.rb 
 /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in`require'：can not load such file  -  mkmf（LoadError）
 from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in`require'
 from extconf.rb：1：in<<主要>'
 
 
 Gem文件将保留安装在/home/jack/.bundler/tmp/10426/gems/json-1.7.5中进行检查。 
记录到/home/jack/.bundler/tmp/10426/gems/json-1.7.5/ext/json/ext/generator/gem_make.out 
的结果安装json时发生错误（1.7 .5）和Bundler无法继续。 
确保`gem install json -v'1.7.5'`捆绑成功。 
 jack @ jack-ThinkCentre：〜/ rails_projects / sample_app 
  

我无法安装宝石单独或捆绑安装。我用rvm来安装rails。在安装ruby1.9.1-dev软件包时应该为你解决这个问题。 $ b

  sudo apt-get install ruby​​1.9.1-dev 
  

Hey I am new to rails (as well as linux) and I keep getting this error:

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$

I cant install the gem individually or with bundle install. I used rvm to install rails. thanks in advance.

解决方案

Installing the ruby1.9.1-dev package should fix this for you

sudo apt-get install ruby1.9.1-dev

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