Setup iDempiere development workspace for Eclipse. The Eclipse workspace should have no build errors.
Using the feature project wizard, create a new feature for the target platform. You will remove this project at the end so just give it an arbitrary name.
In the plugin selection page, the plugins listed are the ones in your target platform together with your workspace plugin projects.
Select Initialize from the plugin list and Select all plugins.
De-select your workspace plugins(org.idempiere., org.adempiere., org.compiere.*, org.apache.ecs, etc).
De-select platform launcher plugins (macos, linux and win32).
At feature.xml editor, switch to Included Features tab and add org.eclipse.equinox.executable feature.
Replace includes and plugin entries in feature.xml with include and plugin entries from the newly created feature.xml.