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CYGWIN上的Ruby on Rails安装错误

[英]Ruby on Rails Installation Error on CYGWIN

I'm trying to install rails on CYGWIN and I obtained the following error: 我试图在CYGWIN上安装rails,但出现以下错误:

$ gem install rails
ERROR:  While executing gem ... (TypeError)
can't convert nil into String

How I can I eliminate this error and enjoy the wonders of Ruby on Rails 我如何消除该错误并享受Ruby on Rails的奇迹

I don't know reason why latest version from http://rubygems.org doesn't work with cygwin. 我不知道为什么http://rubygems.org的最新版本不适用于cygwin。 I use this older version from github repo . 我用这个从旧版本的github回购

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