'Eclipse feature and plugin not visible after installing from updatesite

I made several new E4-based plugins, each defined in a fragment.e4xmi file. The simplest one should just show a test menu in the main menu and a test popup menu.

When running an Eclipse instance from the development IDE, everything works as expected. However, when publishing those plugins and features via a test update site, an end user can install the new plugins using the update site, but the UI is not visible in the Eclipse IDE. In the Help / About Eclipse IDE / Installation Details, the "Installed Software" shows my new plugins, but the features list does not. The Plug-Ins list does show some utility plugins, but none of those contributing to the UI.

Older plugins (not using e4) are visible as expected.

  1. Which settings do I have to check?
  2. How can I debug the installation?

Thanks in advance.



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