Dependencies of the Spoofax plugin for IntelliJ IDEA are not actually
managed in the plugin project itself, but in a separate project: the
Add dependencies to or remove them from the
If a dependency causes a JAR version conflict with a JAR that’s distributed with IntelliJ IDEA or JPS, see the troubleshooting page for a solution.
Rebuild the dependencies project to use them in the plugin:
./gradlew clean publishToMavenLocal