gem install json -v 1.7.3 给出“请更新您的 PATH 以包含构建工具”
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gem install json -v 1.7.3 gives 'Please update your PATH to include build tools'
提问by Joe
When I run:
当我运行时：
rails new blog
I get:
我得到：
Installing json (1.7.3)
Gem::InstallError: The 'json' native gem requires installed build tools.
Please update your PATH to include build tools or download the DevKit
from 'http://rubyinstaller.org/downloads' and follow the instructions
at 'http://github.com/oneclick/rubyinstaller/wiki/Development-Kit'
An error occurred while installing json (1.7.3), and Bundler cannot continue.
Make sure that `gem install json -v '1.7.3'` succeeds before bundling.
When I run:
当我运行时：
gem install json -v 1.7.3
I get:
我得到：
Please update your PATH to include build tools or download the DevKit
from 'http://rubyinstaller.org/downloads' and follow the instructions
at 'http://github.com/oneclick/rubyinstaller/wiki/Development-Kit'
I'm using Windows 8. I do have c:\ruby193\binin my path. What do I do to remedy these errors?
我使用的是 Windows 8。我确实c:\ruby193\bin在使用 Windows 8 。我该怎么做才能纠正这些错误？
回答by Julien Pellet
Make sure you install the devkit (ticking the checkboxes that will update the path) : You might need to reinstall ruby too.
确保安装了 devkit（勾选将更新路径的复选框）：您可能还需要重新安装 ruby。
Install the DevKit
安装开发套件
Download Development Kit from here http://rubyinstaller.org/downloads/
从这里下载开发工具包http://rubyinstaller.org/downloads/
DevKit url at this time For use with Ruby 1.8.7 and 1.9.3: DevKit-tdm-32-4.5.2
此时的 DevKit url 用于 Ruby 1.8.7 和 1.9.3：DevKit-tdm-32-4.5.2
For use with Ruby 2.0 and above (32bits version only): DevKit-mingw64-32-4.7.2
用于 Ruby 2.0 及更高版本（仅限 32 位版本）： DevKit-mingw64-32-4.7.2
For use with Ruby 2.0 and above (x64 - 64bits only) DevKit-mingw64-64-4.7.2
用于 Ruby 2.0 及更高版本（仅限 x64 - 64 位） DevKit-mingw64-64-4.7.2
Follow instructions here.
按照此处的说明操作。
Or short instructions :
或简短说明：
Unzip the zip
open command-line and go to unzipped folder
ruby dk.rb init
ruby dk.rb install
gem install rdiscount --platform=ruby
解开拉链
打开命令行并转到解压缩的文件夹
ruby dk.rb 初始化
ruby dk.rb 安装
宝石安装 rdiscount --platform=ruby
回答by M.R.Safari
sometimes when you run the ruby dk.rb inityou got an error like this
有时当你运行时你ruby dk.rb init会得到这样的错误
for fixing this problem you have to change the encoding of the command prompt windows .
to do this type chcp 1256and you will receive this message : Active code page: 1256
要解决此问题，您必须更改命令提示符窗口的编码。执行此类型chcp 1256，您将收到此消息：活动代码页：1256
now you can run that command without problem .
现在您可以毫无问题地运行该命令。
good luck .
祝你好运 。
回答by Ryan Bemrose
If you know that you have the proper DevKit installed (eg: via chocolatey), then you simply need to run the included script to set up environment variables.
如果您知道您安装了正确的 DevKit（例如：通过Chocolatey），那么您只需要运行包含的脚本来设置环境变量。
In cmd:
在 cmd 中：
C:\> d:\path\to\DevKit2\devkitvars.bat
In PowerShell:
在 PowerShell 中：
PS> . d:\path\to\DevKit2\devkitvars.ps1
These scripts will set up the correct paths in your current command window.
这些脚本将在您当前的命令窗口中设置正确的路径。
回答by Akash
Delete the old DevKit folderbefore you extractthe new one which you will download from one of the following links, based on your configuration:
DevKit folder在您之前删除旧的extract，您将从以下之一下载新的links，基于您的configuration：
DevKit url at this time For use with Ruby 1.8.7 and 1.9.3: https://github.com/downloads/oneclick/rubyinstaller/DevKit-tdm-32-4.5.2-20111229-1559-sfx.exe
此时的 DevKit url 用于 Ruby 1.8.7 和 1.9.3：https: //github.com/downloads/oneclick/rubyinstaller/DevKit-tdm-32-4.5.2-20111229-1559-sfx.exe
For use with Ruby 2.0 and above (32bits version only): http://dl.bintray.com/oneclick/rubyinstaller/DevKit-mingw64-32-4.7.2-20130224-1151-sfx.exe2
用于 Ruby 2.0 及更高版本（仅限 32 位版本）：http: //dl.bintray.com/oneclick/rubyinstaller/DevKit-mingw64-32-4.7.2-20130224-1151-sfx.exe2
For use with Ruby 2.0 and above (x64 - 64bits only) http://dl.bintray.com/oneclick/rubyinstaller/DevKit-mingw64-64-4.7.2-20130224-1432-sfx.exe3
用于 Ruby 2.0 及更高版本（仅限 x64 - 64 位）http://dl.bintray.com/oneclick/rubyinstaller/DevKit-mingw64-64-4.7.2-20130224-1432-sfx.exe3
