problem in installing rails

hi all i am getting problem while installing rails in by gem : i have written in terminal

gem install rails

Successfully installed rails-3.0.3
1 gem installed
Installing ri documentation for rails-3.0.3...
File not found: lib

what i need to do next and how to instal开发者_如何学JAVAl rails using gem.

I had the same problem. I continued with the error. I do not see anything breaking. And I can code peacefully. So, probably you do not need to worry.

sudo apt-get install build-essential libopenssl-ruby libfcgi-dev
sudo apt-get install ruby irb rubygems ruby1.8-dev
sudo apt-get install sqlite3 libsqlite3-dev
sudo gem install rails
sudo gem install sqlite3-ruby

If you dont find path do this: (for Unix based systems)

Quoted from the book, but anyone else would suggest the same

If you can’t find the rails command, you may need to add 
/var/lib/gems/1.8/bin to your PATH environment variable.
 You can do this by adding a line to your .bashrc file:


export PATH=/var/lib/gems/1.8/bin:$PATH

OK as aditya sanghi has mentioned, I do lack rdoc gem-- so probably running this will help

gem install rdoc rails

I've seen this error when you dont have the "rdoc" gem installed. Can you do a "gem list" and show us a list of gems installed?

Try running "gem install rdoc rails".