Gradle: Failed to detect project changes

org.eclipse.core.runtime.CoreException: SynchronizingBuildScriptUpdateListener failed
	at org.eclipse.buildship.core.internal.workspace.SynchronizingBuildScriptUpdateListener$1.visit(SynchronizingBuildScriptUpdateListener.java:75)
	at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:67)
	at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:77)
	at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:51)
	at org.eclipse.buildship.core.internal.workspace.SynchronizingBuildScriptUpdateListener.visitDelta(SynchronizingBuildScriptUpdateListener.java:68)
	at org.eclipse.buildship.core.internal.workspace.SynchronizingBuildScriptUpdateListener.resourceChanged(SynchronizingBuildScriptUpdateListener.java:55)
	at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:305)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:295)
	at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:158)
	at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:381)
	at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1505)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2329)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2340)
	at org.eclipse.jdt.ls.core.internal.handlers.BaseDocumentLifeCycleHandler.didSave(BaseDocumentLifeCycleHandler.java:337)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.didSave(JDTLanguageServer.java:794)