Hi,
there must be some configuration mistake but can someone help me out?
I have ruby, gem, rails and such installed.
version
ruby: 1.8.4
gem: 0.8.11
rails 1.2.2

If I do a

rake rails:update

I get the following:

Rake aborted!
undefined method `gem' for main:Object

I get the same message when doing just
rake

any ideas?
Is there a problem with my path?

thanks in advance.