Torrent help?

I honestly don't know where else to post this, so here we go.

I'll try and explain it as much as I can so I can get (hopefully) a helpful answer.

I'm sort of new to making torrents, at least on a Mac, and I ran into problems. I run on OS X 10.7.2 and am using uTorrent.

I try to create a new torrent. Find my directory. Put down my trackers. Name it. And it tells me,
"Torrent file creation failed for "/" "

Does anyone know how to resolve this problem?

Thank you.