[news.eclipse.modeling.gmf] Problem during Create Generator model proces

["Last Course" <tcame002@xxxxxxx>]

Hi,

I have tried to run the below tutorial 
http://www-128.ibm.com/developerworks/library/os-ecl-gmf/index.html#download 
for GMF but whenever I get to the point where it is possible to "Create 
generator model" from the gmfmap file I get the following error:
An internal error occurred during: "Create generator model...". Which no 
details as to why the error occured. I would like help in determining why 
the error occurred and how to resolve it.

Thanks in advance,

Tuan