(Hubitat) Piston does not subscribe to any events


Says piston does not subscribe to any events and will not run. I have a timer and at least 3 events.



|+8ms|║An error has occurred while subscribing: groovy.lang.MissingMethodException: No signature of method: user_app_ady624_webCoRE_Piston_156.removeAllInUseGlobalVar() is applicable for argument types: () values: []|
|+85ms|╔Starting piston... (v0.3.113.20211120_HE)|
|+87ms|╚Piston successfully started (81ms)|


Let’s tag @E_Sch, maybe he can dig deeper.

Are you on the latest version, there’s been a few updates the last couple of days.


I’m on v0.3.113


I’m not on the latest so not sure if that’s current… see below


Ah. I think I fixed the issue by updating Hubitat to the latest version. It’s no longer giving me that message, and the timer appears on the dashboard.


that error messages suggests you have newer webcore on older HE hub firmware.

Your choices are to

  • upgrade your HE firmware to recent
  • or restore from backup prior to when you updated webCoRE.

The latest webCoRE on HE needs recent firmware