Rubygems不会在OS X Lion上安装

问题描述

限时删除！！

我以前没有遇到任何问题，包括红宝石，宝石和所有相关的东西。但是在安装了X代码开发工具并升级到Lion之后，这些宝石就不会安装。

每个宝石都会出现以下错误。这是以sqlite为例的消息：

 构建原生扩展。这可能需要一段时间... 
错误：安装sqlite3时出错：
错误：无法构建gem本机扩展。 
 
 /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb 
 mkmf.rb无法找到ruby的头文件在/ System / Library / Frameworks / Ruby.framework / Versions / 1.8 / usr / lib / ruby​​ / ruby​​.h 
 
 Gem文件将保留安装在/Library/Ruby/Gems/1.8/gems/sqlite3-1.3中。 4进行检查。 
结果记录到/Library/Ruby/Gems/1.8/gems/sqlite3-1.3.4/ext/sqlite3/gem_make.out 
  

出了什么问题？如何解决它？

解决方案

我必须在最新的Xcode-Version（4.3.1）中安装命令行工具，

  sudo gem install rails 
  

$ b

像魅力一样工作。

要安装命令行工具，请转至Xcode首选项>下载，或者在终端中使用以下命令（thx @ Purell ）：

  xcode-select --install 
  

I used to have no problems at all with ruby, gems and all related stuff. But after installing X Code Developer Tools and upgrading to Lion the gems do not install.

I get the following error for every gem. This is the message for sqlite as an example:

Building native extensions.  This could take a while...
ERROR:  Error installing sqlite3:
ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/sqlite3-1.3.4 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/sqlite3-1.3.4/ext/sqlite3/gem_make.out

What went wrong? How to fix it?

解决方案

I had to install the Command Line Tools in the latest Xcode-Version (4.3.1) and

sudo gem install rails

worked like a charm.

To install Command Line Tools, go to Xcode Preferences > Downloads or use the following command in terminal (thx @Purell):

xcode-select --install

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