[OH4 StartUp WARN] The transformation add-on 'javascript' does not exist - ignoring it

[ubeaut (Greg)]

I used this method as well as editing: /var/lib/openhab/config/org/openhab/addons.config

[Solved] OH3: How to get rid of old bindings?

If you can’t find the file, just fix the configuration using the Console like this: [fix] No restart required! Commands used in the “movie” config:edit org.openhab.addons config:property-list config:property-set ui basic,habpanel config:property-set binding astro config:property-list config:update

Mine looked like this:

openha-cli console
config:edit org.openhab.addons
config:property-list 
config:property-set transformation regex,jsonpath
config:property-list
config:update

Then restarted OH4 and no more javascript messages.