Standard behaviour to run a Rhosync webserver requires running the following command in the folder containing your Rhosync server app (talking windows here):
1: rake rhosync:start
which will run in a new cmd window. Problem is if there is a compile error, this window will close before you get to see the error. I was expecting to see errors in logs somewhere, but my limited searching turned up nothing.
Easy fix is to just call rake instead. e.g.
Probably easy for most people to work out, but for us linux noobs simple things can sometimes seem very difficult :(