Domoticz

Hello im new here , and programming a simpel script, but is seens to be wrong?
Can someone help ?

are you running the stable or the beta version of domoticz?

.checkFirst() is available on 2.3 dzVents framework which is NOT included in the stable

have a look to http://<your domoticz server>:8080/#/About and check the dzVents version
ciao
M

Ok tks its the stable version
Version: 3.8153
Build Hash: 494fff7
Compile Date: 2017-07-30 12:19:41
Just have to wait then