I have managed to rebuild my openHAB with openHABian and OH3 all via the main UI. A big thank you to all who contribute to this wonderful project! Even though I have been around from a 1.x environment I still think of myself as a beginner and have found OH3 to be much easier to get going.
I only have one challenge, self inflicted no doubt, I have this warning popping up frequently in the log viewer,
2021-01-04 15:19:37.373 [WARN ] [e.internal.SseItemStatesEventBuilder] - Attempting to send a state update of an item which doesn't exist: undefined
I don’t know how to track down the item which doesn’t exist, I have around 200 items. Is there a way to identify what item it might be referring to so I can resolve?