So, it did work... The problem was on me, I guess.
I was using this example:
https://tour.dlang.org/tour/en/dub/vibe-d
It wasn't working at all... So I've changed to this one, and it did work.
https://code.dlang.org/packages/vibe-d/0.9.2
I've used the first example, there are some differences to the one on tour.dlang.
Thanks all for the support.
