I wanted to add a field where it calculates the age of a person, thus --> Birth date - Now
I tried to implement this guide. [see the Datetime Now Example].
Somehow I got an error said cannot resolve symbol [zdt].
Then, I suspect that zdt is the brief term for ZonedDateTime. I changed the zdt to ZonedDateTime, then I got an error said static method [java.time.ZonedDateTime, toInstant/0] not found. Idk what's wrong here?
Do we need to define the parameter "now" as in the Input? Where do we do that? How?