This page last changed on Apr 09, 2014 by iloveautomation.

I recently installed a SSD on my PC and installed Openremote on the drive. I already had a well working setup on my regular HDD which I replaced with the new SSD. However after the installation I have all my http get commands fail (response N/A) while parsing XML pages. Looking at the log I get the following error

014-04-09 18:18:33,318 ERROR [Polling thread for sensor: Forecast\_WeatherText\_4]: Could not perform xpath evaluation
java.lang.NullPointerException
at org.openremote.controller.statuscache.rules.RuleEngine.push(RuleEngine.java:145)
at org.openremote.controller.statuscache.EventProcessorChain.push(EventProcessorChain.java:188)
at org.openremote.controller.statuscache.StatusCache.update(StatusCache.java:260)
at org.openremote.controller.model.sensor.Sensor.update(Sensor.java:342)
at org.openremote.controller.protocol.http.HttpGetCommand.run(HttpGetCommand.java:274)
at java.lang.Thread.run(Unknown Source)

Tried replace the controller folder with a backup copy but still no luck. All other commands work perfectly. Any help will be appreciated.

Document generated by Confluence on Jun 05, 2016 09:39