Ruby on rails I'；在Rails中安装丢失的gems时遇到问题

我在启动Rails web服务器时遇到问题。我尝试在cmd提示符中输入“rails服务器”，但出现以下错误：

C:\Ruby193\demo>rails server
←[31mCould not find gem 'jquery-rails (>= 0) x86-mingw32' in the gems available
on this machine.←[0m
←[33mRun `bundle install` to install missing gems.←[0m

但是，每当我进行捆绑安装以安装丢失的gem时，就会出现以下错误：

C:\Ruby193\demo>bundle install
Fetching gem metadata from https://rubygems.org/.........
Using rake (0.9.2.2)
Using i18n (0.6.0)
Using multi_json (1.2.0)
Using activesupport (3.2.3)
Using builder (3.0.0)
Using activemodel (3.2.3)
Using erubis (2.7.0)
Using journey (1.0.3)
Using rack (1.4.1)
Using rack-cache (1.2)
Using rack-test (0.6.1)
Using hike (1.2.1)
Using tilt (1.3.3)
Using sprockets (2.1.2)
Using actionpack (3.2.3)
Using mime-types (1.18)
Using polyglot (0.3.3)
Using treetop (1.4.10)
Using mail (2.4.4)
Using actionmailer (3.2.3)
Using arel (3.0.2)
Using tzinfo (0.3.33)
Using activerecord (3.2.3)
Using activeresource (3.2.3)
Using bundler (1.1.3)
Using coffee-script-source (1.3.1)
Using execjs (1.3.0)
Using coffee-script (2.2.0)
Using rack-ssl (1.3.2)
Installing json (1.6.6) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extensio
.

    C:/Ruby193/bin/ruby.exe extconf.rb
creating Makefile

make
'make' is not recognized as an internal or external command,
operable program or batch file.


Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.6
6 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/json-1.6.6/ext/json/ext/g
nerator/gem_make.out
An error occured while installing json (1.6.6), and Bundler cannot continue.
Make sure that `gem install json -v '1.6.6'` succeeds before bundling.

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然后，我尝试在没有任何运气的情况下安装json。有什么建议吗？

因为您使用的是Windows，所以需要安装开发工具包，以便能够使用本机扩展构建gems

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由于您使用的是Windows，因此需要安装开发工具包，以便能够使用本机扩展构建gems