Can'；在Windows上安装RubyInstaller和DevKit后，请不要安装RDisunt gem

我试图在Windows 7计算机上设置RoR时出错。我用RubyInstaller和DevKit安装了Ruby。按照他们的指示，它要求执行

gem install rdisont--platform=ruby

，以确保安装正确。我得到以下错误：

C:\Windows\system32>cd ../../DevKit

C:\DevKit>gem install rdiscount --platform=ruby
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing rdiscount:
        ERROR: Failed to build gem native extension.

    C:/Ruby200-x64/bin/ruby.exe extconf.rb
checking for random()... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=C:/Ruby200-x64/bin/ruby
        --with-rdiscount-dir
        --without-rdiscount-dir
        --with-rdiscount-include
        --without-rdiscount-include=${rdiscount-dir}/include
        --with-rdiscount-lib
        --without-rdiscount-lib=${rdiscount-dir}/
C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:431:in `try_do': The compiler failed to ge
nerate an executable file. (RuntimeError)
You have to install development tools first.
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:516:in `try_link0'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:531:in `try_link'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:717:in `try_func'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1001:in `block in have_func'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:892:in `block in checking_for
'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:337:in `block (2 levels) in p
ostpone'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:307:in `open'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:337:in `block in postpone'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:307:in `open'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:333:in `postpone'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:891:in `checking_for'
        from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1000:in `have_func'
        from extconf.rb:5:in `<main>'


Gem files will remain installed in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rdisc
ount-2.0.7.1 for inspection.
Results logged to C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rdiscount-2.0.7.1/ext/
gem_make.out

C:\Windows\system32>cd.././DevKit
C:\DevKit>gem安装rdisont--platform=ruby
暂时增强包含DevKit的路径。。。
构建本机扩展。这可能需要一段时间。。。
错误：安装RDisont时出错：
错误：无法生成gem本机扩展。
C:/Ruby200-x64/bin/ruby.exe extconf.rb
正在检查random（）…***extconf.rb失败***
由于某些原因无法创建Makefile，可能缺少必要的
库和/或标题。有关详细信息，请查看mkmf.log文件。你可以
需要配置选项。
提供的配置选项：
--使用opt dir
--不带opt dir
--选择包含
--不带opt include=${opt dir}/include
--使用opt lib
--不带opt lib=${opt dir}/lib
--用make prog
--没有make prog
--srcdir=。
--库尔迪尔
--ruby=C:/Ruby200-x64/bin/ruby
--与rdisont dir
--没有侦察机
--包括
--不带RDisont include=${RDisont dir}/include
--使用RDisont lib
--不带RDisont lib=${RDisont dir}/
C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:431:in'try_do'：编译器未能将
生成一个可执行文件。（运行时错误）
您必须首先安装开发工具。
来自C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:516:in'try_link0'
来自C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:531:in'try_link'
来自C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:717:in'try_func'
来自C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1001:in`block in have_func'
来自C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:892:in`block in checking_
'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:337:in`block（2层）in`p
ostpone'
从C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:307:in'open'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:337:in'block in delay'
从C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:307:in'open'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:333:in“推迟”
来自C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:891:in'checking_'
来自C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1000:in'have_func'
来自extconf.rb:5:in`'
Gem文件仍将安装在C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rdisc中
用于检查的UNT-2.0.7.1。
结果记录到C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rdisont-2.0.7.1/ext/
珠宝店

---

我已经尝试并删除了一个重复的

libiconv-2.dll

文件，但问题仍然存在。有什么建议吗？

此时，Windows上的RDiscont已损坏，请参阅

如果您已经安装了Ruby和DevKit，那么您可以安装其他gem，如

json

或

RedCloth

，以验证它是否正确编译：

gem install json --platform=ruby
gem install RedCloth --platform=ruby

希望有帮助