new user, please help!

Hi, I'm new to everything so I was just reading this apple page trying
to get things set up.
http://developer.apple.com/tools/developonrailsleopard.html

Anyways I get to the "sudo gem update sqlite3-ruby" step after running
the first 3 and I get this error... Can someone please give me exact
steps to help me correct this. I really don't have any experience so if
you could write things out verbatim it would be really appreciated!

HERE IS WHAT SHOWS UP:
sudo gem update sqlite3-ruby
Password:
Updating installed gems
Updating sqlite3-ruby
Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
    ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
extconf.rb update sqlite3-ruby
can't find header files for ruby.

Gem files will remain installed in
/Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4 for inspection.
Results logged to
/Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4/ext/sqlite3_api/gem_make.out

Hi, I'm new to everything so I was just reading this apple page trying
to get things set up.http://developer.apple.com/tools/developonrailsleopard.html

Anyways I get to the "sudo gem update sqlite3-ruby" step after running
the first 3 and I get this error... Can someone please give me exact
steps to help me correct this. I really don't have any experience so if
you could write things out verbatim it would be really appreciated!

Dumb question: you do have the developer tools installed right ?

Fred

Frederick Cheung wrote:

It does - you can't compile a native gem like sqlite3 without the
developer tools installed and that error message is saying "i couldn't
find some build related things"

Fred