From: Serguei Cambour Date: 2009-12-11T17:56:41+09:00 Subject: Re: gems installation - invalid gem format I think I found the reason. I just opened the file that Ruby pointed in (C:/Ruby/lib/ruby/gems/1.8/cache/[gem_name]. Here is what was inside (I had to do that much earlier without loosing so much time :(: [code]

This website is blocked.

To unlock it's content, please send a request to support@mydomain.com

[/code] As you can see, the problem was that Ruby tried to go through the port 7000 that was blocked by the enterprise firewall. Just to be sure at 100%, I took 2 laptops: with Windows XP Family and Ubuntu 9.10 and tried to install RoR environment at home where I know exactly my firewall configuration. And, as I expected, everything was installed without any problem. Thank you so much for your help. I'd like that Ruby error message to be more user-friendly, like that one could get an idea more quickly where to search. -- Posted via http://www.ruby-forum.com/.