[webkit-help] Webkit Build Fail - windows

[sghosh at cs.wisc.edu]

I have followed the instructions to install all the dev tools required to
get webkit running on windows, got the latest nightly build.
But when I run the script to build webkit from Cygwin shell I repeatedly
get this error message -
"Please ensure you have run Webkit/WebkitTools/Scripts/update-webkit to
install dependencies."

Running update-webkit does not solve the problem.
Can anyone please help me out?

Thanks
Subhadip