[framework] [Framework] Msfweb Windows trouble

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Hi list,

I just updated the Framework 3.0 and I got the following error when I try
to launch the MSFWeb :

[*] Starting the Metasploit Framework...
Cannot find gem for Rails =1.2.2:
    Install the missing gem with 'gem install -v=1.2.2 rails', or
    change environment.rb to define RAILS_GEM_VERSION with your desired
version.

By the way the MSFConsole works fine.
Any idea ?

-- 
Jipe