Installing Rails: "File not found: lib" On Windows 7

whenever I try to install Rails on windows7 , I get the error, File not found: lib. please help me to solve thi开发者_运维知识库s problem.

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I saw other post with exactly this problem but in ubuntu in this site : That link is here

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The best tool to use for rails in windows is rails installer for windows and it comes with the latest version of rails. I just hope this helps you solve your problems