errors when install Green UML on eclipse(version 3.8) on Mac

Question

I am trying to install Green UML on eclipse(version 3.8), but there are some errors listed below. Anybody know how to solve it?

"Cannot complete the install because one or more required items could not be found. Software being installed: Green 3.5.0 (Green.feature.group 3.5.0) Missing requirement: Green 3.5.0 (Green.feature.group 3.5.0) requires 'org.eclipse.draw2d 0.0.0' but it could not be found"

Answer 1

When you are installing something in Eclipse, at the moment of choosing what will be installed, mark the option :

Contact all update sites during instal to find required software

Also, you should be sure that you have all update sites set. Go to Work With field and check sites. You should have there:

• http://download.eclipse.org/releases/kepler/
• http://download.eclipse.org/eclipse/updates/4.3

If you don't have these sites, write them both into the field.

The package org.eclipse.draw2d is one of three main components of GEF. The GEF is on the first site, so, the problem should be eliminated. You need only to revert the last installation (help-about- installation details - installation history- the previous installation - revert), restart Eclipse and repeat the installation.