From: Barry Yu <yubarry@...>
Date: 2012-01-10T03:12:34+09:00
Subject: Re: Green Shoes v1.0 released

why do I get this error?

C:\Users\aaa\Ruby193>gem install green_shoes
ERROR:  Error installing green_shoes:
invalid gem format for C:/Users/aaa/Ruby193/lib/ruby/gems/1.9.1/cache/g
lib2-1.1.0-x86-mingw32.gem

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