'sonos:save' and 'sonos:restore'

Hi.

When I add this to the item file I get this error:

Switch Sonos_Room02_Save (Sonos) {channel=“sonos:zoneplayer:Sonos_Room02:save”}
Switch Sonos_Room02_Restore (Sonos) {channel=“sonos:zoneplayer:Sonos_Room02:restore”}

19:52:45.616 [INFO ] [el.core.internal.ModelRepositoryImpl] - Refreshing model '11_sonos.items’
Exception in thread “Dir Watcher” java.lang.NullPointerException
at org.eclipse.smarthome.model.item.internal.GenericItemProvider.createItemFromModelItem(GenericItemProvider.java:206)
at org.eclipse.smarthome.model.item.internal.GenericItemProvider.processBindingConfigsFromModel(GenericItemProvider.java:166)
at org.eclipse.smarthome.model.item.internal.GenericItemProvider.modelChanged(GenericItemProvider.java:405)
at org.eclipse.smarthome.model.core.internal.ModelRepositoryImpl.notifyListeners(ModelRepositoryImpl.java:200)
at org.eclipse.smarthome.model.core.internal.ModelRepositoryImpl.addOrRefreshModel(ModelRepositoryImpl.java:116)
at org.eclipse.smarthome.model.core.internal.folder.FolderObserver.checkFile(FolderObserver.java:240)
at org.eclipse.smarthome.model.core.internal.folder.FolderObserver.access$1(FolderObserver.java:235)
at org.eclipse.smarthome.model.core.internal.folder.FolderObserver$WatchQueueReader.processWatchEvent(FolderObserver.java:117)
at org.eclipse.smarthome.core.service.AbstractWatchQueueReader.run(AbstractWatchQueueReader.java:95)
at java.lang.Thread.run(Thread.java:744)

Things:
sonos:zoneplayer:Sonos_Room02 [ udn=“RINCON_000E58D7E6F801400”, refresh=60]

Everything else workes fine, but I can’t get the SAVE and RESTORE to work.

strange, now it’s working…