- RPI3
- Raspbian Stretch 9.11
- Java 1.8.0_152
- Openhab 2.5.3-1
Hi All
Not entirely new to linux or OpenHab but struggling to get to the bottom of what I thought was a simple transform error - but finding that I don’t know where to start looking. the message is generic and I have tried turning on what I thought was the right debug logging log:set debug and that didn’t help. I am not sure how to turn on logging specifically for transformations but I don’t know what the source of the error is - so no idea where to start looking in my config files…
/var/log/openhab2/openhab.log shows:
2020-03-21 22:49:42.805 [WARN ] [.mqtt.internal.MqttMessageSubscriber] - Error processing MQTT message.
org.openhab.core.transform.TransformationException: An error occurred while transforming JSON expression.
at org.openhab.core.transform.TransformationHelper$TransformationServiceDelegate.transform(TransformationHelper.java:71) ~[bundleFile:?]
at org.openhab.binding.mqtt.internal.MqttMessageSubscriber.processMessage(MqttMessageSubscriber.java:137) [bundleFile:?]
at org.openhab.io.transport.mqtt.internal.MqttBrokerConnection.messageArrived(MqttBrokerConnection.java:574) [bundleFile:?]
at org.eclipse.paho.client.mqttv3.internal.CommsCallback.deliverMessage(CommsCallback.java:475) [org.eclipse.paho.client.mqttv3-1.1.0.jar:?]
at org.eclipse.paho.client.mqttv3.internal.CommsCallback.handleMessage(CommsCallback.java:379) [org.eclipse.paho.client.mqttv3-1.1.0.jar:?]
at org.eclipse.paho.client.mqttv3.internal.CommsCallback.run(CommsCallback.java:183) [org.eclipse.paho.client.mqttv3-1.1.0.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_152]
Any help much appreciated - I’ve been looking at this for ages and just struggling with where to look to find my next clue (which item is this? is there a problem with a transform although I only have one and it is for a device which is currently not turned on and thus not sending MQTT messages)