Database Cache Directory for WebCalendar V1.1.1

Hi, I’m doing the manual install of WebCalendar v1.1.1 (as the automatic installer doesn’t seem to work).
The home for WebCalendar is

I’m going through the setup and have created the MySQL db as instructed, but now the setup has stopped, saying:
Failure Reason:Database Cache Directory does not exist

It does give me opportunity to give location of Cache Directory, and default is set to: C:/wamp/webcal-cache

please help me fix this!!