The CDS metadata schema is inconsistent...

Hi,

I'm trying to create a Hana XS Project using Eclipse Mars with the Hana Developer Tools.  I was able to do this successfully once but now it no longer works.  I'm going through the steps to create a new project

From project explorer;

1. Right click on the project explorer section and choose new->SAP Hana->Application Development->XS Project
2. Give it a project name: ES_PROJ
3. Choose a repository workspace.
4. Enter the Schema, DLL and XS Javascript names.  I've chosen EFS, EFSDDL, EFSXSJS as the associated names.

This does some stuff but I get a little error icon on the EFSDDL.hdbdd item.  That's the one that cannot be activated without triggering the error.

This is the error message:

exception 1330078: The CDS metadata schema is inconsistent.  Please contact your system administrator.

I haven't been able to find anything on how to fix this error. I've contacted my system administrator but they're in Mexico so it can take a long time to hear anything back.

If anyone has any clue about where to look to fix this sort of problem, I'd really appreciate it.  I've been unable to work through the tutorials because of this.

Thanks