Error message "ScriptEngine for language 'application/javascript' could not be found for identifier"

[wborn (Wouter Born)]

There is a handy FAQ that answers this: openHAB 4 migration FAQ

@laursen

ScriptEngine for language ‘application/javascript’ not found

Symptom

Error like this logged:

[ERROR] [ipt.internal.ScriptEngineManagerImpl] - ScriptEngine for language ‘application/javascript’ could not be found for identifier: 6ee73f65-d669-421f-ae82-a239f467555b

Mitigation

Install JavaScript Scripting add-on.