Can't locate Heap/Fibonacci.pm in @INC (@INC contains: /etc/perl 

/usr/local/lib/perl/5.10.0 /usr/local/share/perl/5.10.0
 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 
/usr/local/lib/site_perl .) at /usr/local/share/perl/5.10.0/Algorithm/Huffman.pm line 14.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.0/Algorithm/Huffman.pm line 14.
Compilation failed in require at haffman.pl line 3.
BEGIN failed--compilation aborted at haffman.pl line 3.