Reg : Rubygems

I tried to install the restful_adhearsion package.
So I used,
$ gem install jsgoecke-restful_adhearsion
–source=http://gems.github.com/
But it shows the error,
ERROR: could not find gem jsgoecke-restful_adhearsion locally or in a
repository

I referred that we have to update the rubygems. So I have used,
$ gem update --system
It returns,
Updating RubyGems
Nothing to update

What I have to do? I need to install that package. I searched a lot.
But I couldn’t rectify this. Let me know how to do this?

Thanks.

Sasi Kala wrote:

It returns,

There doesn’t seem to be such a package on github:
http://gems.github.com/list.html
Maybe send the author a note?

-Justin