Thanks for the prompt reply. I'll tell you more info which might help
you to pinpoint the problem.
I installed 'Eclipse Classic 3.5.0 (162 MB)' from
http://www.eclipse.org/downloads/. Then I successfully installed 'GEF'
via update manager by adding this site
'http://download.eclipse.org/tools/gef/update-site/releases/site.xml'.
However, I could not completed 'EMF' installation via update manager
by adding this site
'http://download.eclipse.org/modeling/emf/updates/releases'. There are
many components came up when after adding the site. I ticked them all.
The there was an error message stating missing 'org.eclipse.ocl
[1.1.0,2.0.0]'. Therefore, I just copied and pasted the contents in
Features and Plugin from separated downloaded zip file into the
Eclipse Features and Plugin folders.
I guess these can be the problems causing Wireframe Sketcher
installation. Can you give me some advice on what I have done wrong?
Many thanks.
Xiao