Rails - Feb 2009 - activemerchant + activesupport install/dependency issues

Hi all:

Saw the awesome railscasts episode on activemerchant and am going to
give it a try, but keep running into this install problem that I can''t
figure out:  after installing activemerchant as a gem, my rake keep
aborting with this error:

/Library/Ruby/Site/1.8/rubygems.rb:149:in `activate'': can''t
activate
activesupport (>= 1.4.1, runtime), already activated
activesupport-2.1.0 (Gem::Exception)

I''ve tried uninstalling all the gems and reinstalling, installing
activemerchant 1.4.0 to no avail.  No info that I can find on this
error that I can find either.  Help would be much appreciated!

BTW, not sure if this trace from rake gems:install with trace is more
useful:

william$ sudo rake gems:install --trace
(in /Users/william/Code/lolligift/trunk)
** Invoke gems:install (first_time)
** Invoke gems:base (first_time)
** Execute gems:base
** Invoke environment (first_time)
** Execute environment
--~--~---------~--~----~------------~-------~--~----~
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activemerchant requires activesupport >= 2.0.0, and that''s being
loaded ok.

Then some other gem is requiring activesupport 1.4.1, but since 2.1.0
is already loaded it can''t load 1.4.1.

You should run gem cleanup to remove old versions of activesupport. If
that doesn''t fix it, you''ll need to locate the gem
that''s requiring
the older version and try modifying it to take the newer version.

On Mon, Feb 23, 2009 at 1:31 AM,
will.lai-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<will.lai-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> Hi all:
>
> Saw the awesome railscasts episode on activemerchant and am going to
> give it a try, but keep running into this install problem that I
can''t
> figure out:  after installing activemerchant as a gem, my rake keep
> aborting with this error:
>
> /Library/Ruby/Site/1.8/rubygems.rb:149:in `activate'':
can''t activate
> activesupport (>= 1.4.1, runtime), already activated
> activesupport-2.1.0 (Gem::Exception)
>
> I''ve tried uninstalling all the gems and reinstalling, installing
> activemerchant 1.4.0 to no avail.  No info that I can find on this
> error that I can find either.  Help would be much appreciated!
>
> BTW, not sure if this trace from rake gems:install with trace is more
> useful:
>
> william$ sudo rake gems:install --trace
> (in /Users/william/Code/lolligift/trunk)
> ** Invoke gems:install (first_time)
> ** Invoke gems:base (first_time)
> ** Execute gems:base
> ** Invoke environment (first_time)
> ** Execute environment
--~--~---------~--~----~------------~-------~--~----~
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For more options, visit this group at
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-~----------~----~----~----~------~----~------~--~---