A Gradle project in my workspace (call it Downstream) needs to depend on another Gradle project (call it Upstream). Outside of Eclipse, of
It turns out this is was an outstanding feature request for Gradle IDE. It has been delivered for the 3.6.3 release of Gradle IDE.
You do have to enable it, though:
The feature has to be enabled in the Gradle preferences page. Access via "Window >> Preferences >> Gradle".
If you are not seeing the "remap jars to Gradle projects" there then maybe double check that version of the Gradle plugins is indeed 3.6.3. Maybe something went wrong during the upgrade and you are still using an older version. Source