Sorry Erel. I can start a new question if you prefer.
I've tried in various places, originally in a folder next to where my B4A projects are. After reading another thread though, I created a new one at c:\zTest\ to eliminate the possibility of spaces getting in the way.
i'm trying as you explained in the videos, the bridge built as it should, but the "hello world" app won't compile politely. i keep getting the error
"Code Signing Error: Provisioning profile "default" has app ID "b4i.bis.*", which does not match the bundle ID "b4i.bis"."