Ruby on rails Gem:：Ext:：BuildError:错误：无法生成Gem本机扩展。视窗8 Windows必须始终安装开发工具包。但我更喜欢windows rails安装程序，它可以简单地安装所有依赖项。Windows必须始终安装开发工具包。但我更喜欢windows

Gem:：Ext:：BuildError:错误：无法生成Gem本机扩展。视窗8

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Windows必须始终安装开发工具包。但我更喜欢windows rails安装程序，它可以简单地安装所有依赖项。Windows必须始终安装开发工具包。但我更喜欢windows rails安装程序，它可以简单地安装所有依赖项。

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

C:/Ruby/bin/ruby.exe -r ./siteconf20161107-1492-fykpuh.rb extconf.rb
--use-system-libraries
creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
generating generator-i386-mingw32.def
compiling generator.c
make: execvp: gcc: Bad file number
make: *** [generator.o] Error 127

make failed, exit code 2

Gem files will remain installed in C:/Ruby/lib/ruby/gems/2.2.0/gems/json-1.8.3
for inspection.
Results logged to
C:/Ruby/lib/ruby/gems/2.2.0/extensions/x86-mingw32/2.2.0/json-1.8.3/gem_make.out


An error occurred while installing json (1.8.3), and Bundler cannot continue.
Make sure that `gem install json -v '1.8.3'` succeeds before bundling.