Mason help - How to debug HTML::Mason

[abhishek jain]

Hello Friends,
I am using HTML::Mason and wants to debug part of its code.
I have gone through the document at
http://www.masonhq.com/docs/manual/Devel.html#using_the_perl_debugger  and
is using Apache::DB

Whenever i type b HTML::Mason::Request::debug_hook after starting apache by
-X
i get error Subroutine HTML::Mason::Request::debug_hook not found.

Not too sure of the reason for this.

I need to know ASAP how to debug Mason code. Please help me,
Thanks,
Abhi