gvim can't locate the Perl modules - perl

Question

I'm trying to write a function in gvim that would use the module File::Path.But
it alert me "Can't locate File/Path.pm in #INC(#INC contains: .) at (eval 8) line 1.
BEGIN failed--compilation aborted at (eval 8) line 1." when gvim start.
I know it means gvim couldn't find my perl lib path.
So,my question was :
How to tell gvim the correct path to locate the Perl modules?I have tried to add use lib'C:/Perl/lib'; but the problem continued.
Thank you~~~
if has("perl")
function! Make_dir()
perl make_dir();
endfunction
autocmd VimEnter * call Make_dir()
perl <<EOF
use File::Path;
sub make_dir{
my $bakup=$ENV{'HOME'}."/bakup" ;
mkdir $bakup if not -e _;
#VIM::SetOption("backup");
#VIM::SetOption("backupdir=$bakup");
#VIM::Msg($bakup);
#todo....
}
EOF
endif

Answer 1

Did you "censor" your output, or does it really say just "(#INC contains: .)"? That would seem to indicate a bad installation of Perl. It should have a few more directories in there. It could indicate a permission problem, I imagine.
use lib doesn't work because Perl can't find lib.pm or any other module it comes with. -I should work though, but it would only be a bandaid fix.

Answer 2

http://vim.wikia.com/wiki/Script:556
BTW,I tried the way on vim tips wiki also...but the problem continued