If I rwmember correctly gem doesn't like removing gems from /System.  
My advice would be to not worry about it -rubygems is perfectly happy  
with multiple versions of gems

Fred

Sent from my iPhone

On 27 Nov 2008, at 13:03, CFC <[EMAIL PROTECTED]> wrote:

>
> I bought a new Mac (:P) in these days, and I found that Leopard built-
> in rails 1.2.6
> But it's rails 2.2.2 right now, so I upgraded Rubygems before I
> upgraded rails..
> and after I upgraded Rubygems and Rails... I run "gem clean" and got
> the error message:
>
> bash-3.2# gem clean
> Cleaning up installed gems...
> Attempting to uninstall rails-1.2.6
> ERROR:  While executing gem ... (Gem::InstallError)
>    Unknown gem rails = 1.2.6
>
> hmm.. I don't know how to solve it :(
> Could anyone tell me how to solve it? thanks!
>
> >

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