Phongdirectional problem

I’m a vvvv beginer.
I can’t find ‘phongdirectional’ node
when I mouse double click, and then input ‘phongdirectional’,
it does not exist.
what’s the problem?
please let me know.

if you can’t get smth like that

search in your install directory for “pho…” and drag it to v4 windows> confirm paste with click (b27)

thank you~
I solved problem!!